diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3fa87ba..f43acd7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,32 +15,32 @@ jobs:
   fmt:
     name: Formatting
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: rustfmt
+      - run: rustup component add rustfmt
       - run: cargo fmt --all -- --check
 
   clippy:
     name: Lint (clippy)
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache musl-dev perl make git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: clippy
+      - run: rustup component add clippy
       - uses: Swatinem/rust-cache@v2
       - run: cargo clippy --workspace --all-targets
 
   compile-wasm:
     name: Compile WASM target
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          targets: wasm32-unknown-unknown
+      - run: rustup target add wasm32-unknown-unknown
       - uses: Swatinem/rust-cache@v2
       - name: Check crypto crate compiles for WASM
         run: cargo check -p salvium-crypto --target wasm32-unknown-unknown
@@ -50,9 +50,10 @@ jobs:
     name: Compile workspace
     needs: [fmt, clippy, compile-wasm]
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache musl-dev perl make git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: Build all crates
         run: cargo build --workspace
@@ -64,9 +65,10 @@ jobs:
     name: "Test: types + consensus rules"
     needs: [compile]
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache musl-dev perl make git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: salvium-types
         run: cargo test -p salvium-types -- --nocapture
@@ -77,9 +79,10 @@ jobs:
     name: "Test: crypto verification"
     needs: [compile]
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache musl-dev perl make git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: salvium-crypto (unit)
         run: cargo test -p salvium-crypto --lib -- --nocapture
@@ -90,9 +93,10 @@ jobs:
     name: "Test: wallet + transactions + CLI"
     needs: [compile]
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache musl-dev perl make git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: salvium-wallet (unit + integration compile)
         run: cargo test -p salvium-wallet -- --nocapture
@@ -105,9 +109,10 @@ jobs:
     name: "Test: miner + multisig + RPC"
     needs: [compile]
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache musl-dev perl make git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: salvium-miner
         run: cargo test -p salvium-miner -- --nocapture
@@ -120,9 +125,10 @@ jobs:
     name: Documentation
     needs: [compile]
     runs-on: ubuntu-latest
+    container: rust:alpine
     steps:
+      - run: apk add --no-cache musl-dev perl make git
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
       - name: Doc tests
         run: cargo test --workspace --doc
diff --git a/Cargo.lock b/Cargo.lock
index 1672f3b..bf062a7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -354,22 +354,6 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d52eff69cd5e647efe296129160853a42795992097e8af39800e1060caeea9b"
 
-[[package]]
-name = "core-foundation"
-version = "0.9.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91e195e091a93c46f7102ec7818a2aa394e1e1771c3ab4825963fa03e45afb8f"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
-[[package]]
-name = "core-foundation-sys"
-version = "0.8.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
-
 [[package]]
 name = "cpufeatures"
 version = "0.2.17"
@@ -548,15 +532,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "encoding_rs"
-version = "0.8.35"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75030f3c4f45dafd7586dd6780965a8c7e8e285a5ecb86713e63a79c5b2766f3"
-dependencies = [
- "cfg-if",
-]
-
 [[package]]
 name = "env_filter"
 version = "1.0.0"
@@ -580,12 +555,6 @@ dependencies = [
  "log",
 ]
 
-[[package]]
-name = "equivalent"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
-
 [[package]]
 name = "errno"
 version = "0.3.14"
@@ -636,27 +605,6 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5baebc0774151f905a1a2cc41989300b1e6fbb29aff0ceffa1064fdd3088d582"
 
-[[package]]
-name = "fnv"
-version = "1.0.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
-
-[[package]]
-name = "foreign-types"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
-dependencies = [
- "foreign-types-shared",
-]
-
-[[package]]
-name = "foreign-types-shared"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
-
 [[package]]
 name = "form_urlencoded"
 version = "1.2.2"
@@ -774,25 +722,6 @@ dependencies = [
  "subtle",
 ]
 
-[[package]]
-name = "h2"
-version = "0.4.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f44da3a8150a6703ed5d34e164b875fd14c2cdab9af1252a9a1020bde2bdc54"
-dependencies = [
- "atomic-waker",
- "bytes",
- "fnv",
- "futures-core",
- "futures-sink",
- "http",
- "indexmap",
- "slab",
- "tokio",
- "tokio-util",
- "tracing",
-]
-
 [[package]]
 name = "hashbrown"
 version = "0.14.5"
@@ -802,19 +731,13 @@ dependencies = [
  "ahash",
 ]
 
-[[package]]
-name = "hashbrown"
-version = "0.16.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
-
 [[package]]
 name = "hashlink"
 version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ba4ff7128dee98c7dc9794b6a411377e1404dba1c97deb8d1a55297bd25d8af"
 dependencies = [
- "hashbrown 0.14.5",
+ "hashbrown",
 ]
 
 [[package]]
@@ -924,7 +847,6 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-core",
- "h2",
  "http",
  "http-body",
  "httparse",
@@ -953,22 +875,6 @@ dependencies = [
  "webpki-roots",
 ]
 
-[[package]]
-name = "hyper-tls"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70206fc6890eaca9fde8a0bf71caa2ddfc9fe045ac9e5c70df101a7dbde866e0"
-dependencies = [
- "bytes",
- "http-body-util",
- "hyper",
- "hyper-util",
- "native-tls",
- "tokio",
- "tokio-native-tls",
- "tower-service",
-]
-
 [[package]]
 name = "hyper-util"
 version = "0.1.20"
@@ -987,11 +893,9 @@ dependencies = [
  "percent-encoding",
  "pin-project-lite",
  "socket2",
- "system-configuration",
  "tokio",
  "tower-service",
  "tracing",
- "windows-registry",
 ]
 
 [[package]]
@@ -1108,16 +1012,6 @@ dependencies = [
  "num-traits",
 ]
 
-[[package]]
-name = "indexmap"
-version = "2.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7714e70437a7dc3ac8eb7e6f8df75fd8eb422675fc7678aff7364301092b1017"
-dependencies = [
- "equivalent",
- "hashbrown 0.16.1",
-]
-
 [[package]]
 name = "inout"
 version = "0.1.4"
@@ -1290,12 +1184,6 @@ version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8ca58f447f06ed17d5fc4043ce1b10dd205e060fb3ce5b979b8ed8e59ff3f79"
 
-[[package]]
-name = "mime"
-version = "0.3.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
-
 [[package]]
 name = "minicov"
 version = "0.3.8"
@@ -1339,23 +1227,6 @@ dependencies = [
  "pxfm",
 ]
 
-[[package]]
-name = "native-tls"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87de3442987e9dbec73158d5c715e7ad9072fda936bb03d19d7fa10e00520f0e"
-dependencies = [
- "libc",
- "log",
- "openssl",
- "openssl-probe",
- "openssl-sys",
- "schannel",
- "security-framework",
- "security-framework-sys",
- "tempfile",
-]
-
 [[package]]
 name = "nu-ansi-term"
 version = "0.50.3"
@@ -1445,38 +1316,6 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"
 
-[[package]]
-name = "openssl"
-version = "0.10.75"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08838db121398ad17ab8531ce9de97b244589089e290a384c900cb9ff7434328"
-dependencies = [
- "bitflags 2.11.0",
- "cfg-if",
- "foreign-types",
- "libc",
- "once_cell",
- "openssl-macros",
- "openssl-sys",
-]
-
-[[package]]
-name = "openssl-macros"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "openssl-probe"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
-
 [[package]]
 name = "openssl-src"
 version = "300.5.5+3.5.5"
@@ -1873,22 +1712,17 @@ checksum = "eddd3ca559203180a307f12d114c268abf583f59b03cb906fd0b3ff8646c1147"
 dependencies = [
  "base64",
  "bytes",
- "encoding_rs",
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2",
  "http",
  "http-body",
  "http-body-util",
  "hyper",
  "hyper-rustls",
- "hyper-tls",
  "hyper-util",
  "js-sys",
  "log",
- "mime",
- "native-tls",
  "percent-encoding",
  "pin-project-lite",
  "quinn",
@@ -1899,7 +1733,6 @@ dependencies = [
  "serde_urlencoded",
  "sync_wrapper",
  "tokio",
- "tokio-native-tls",
  "tokio-rustls",
  "tower",
  "tower-http",
@@ -2278,15 +2111,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "schannel"
-version = "0.1.28"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "891d81b926048e76efe18581bf793546b4c0eaf8448d72be8de2bbee5fd166e1"
-dependencies = [
- "windows-sys 0.61.2",
-]
-
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -2307,29 +2131,6 @@ dependencies = [
  "zeroize",
 ]
 
-[[package]]
-name = "security-framework"
-version = "2.11.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "897b2245f0b511c87893af39b033e5ca9cce68824c4d7e7630b5a1d339658d02"
-dependencies = [
- "bitflags 2.11.0",
- "core-foundation",
- "core-foundation-sys",
- "libc",
- "security-framework-sys",
-]
-
-[[package]]
-name = "security-framework-sys"
-version = "2.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc1f0cbffaac4852523ce30d8bd3c5cdc873501d96ff467ca09b6767bb8cd5c0"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
 [[package]]
 name = "semver"
 version = "1.0.27"
@@ -2525,27 +2326,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "system-configuration"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a13f3d0daba03132c0aa9767f98351b3488edc2c100cda2d2ec2b04f3d8d3c8b"
-dependencies = [
- "bitflags 2.11.0",
- "core-foundation",
- "system-configuration-sys",
-]
-
-[[package]]
-name = "system-configuration-sys"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e1d1b10ced5ca923a1fcb8d03e96b8d3268065d724548c0211415ff6ac6bac4"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
 [[package]]
 name = "tempfile"
 version = "3.24.0"
@@ -2661,16 +2441,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "tokio-native-tls"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
-dependencies = [
- "native-tls",
- "tokio",
-]
-
 [[package]]
 name = "tokio-rustls"
 version = "0.26.4"
@@ -2681,19 +2451,6 @@ dependencies = [
  "tokio",
 ]
 
-[[package]]
-name = "tokio-util"
-version = "0.7.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ae9cec805b01e8fc3fd2fe289f89149a9b66dd16786abd8b19cfa7b48cb0098"
-dependencies = [
- "bytes",
- "futures-core",
- "futures-sink",
- "pin-project-lite",
- "tokio",
-]
-
 [[package]]
 name = "tower"
 version = "0.5.3"
@@ -3004,35 +2761,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
 
-[[package]]
-name = "windows-registry"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02752bf7fbdcce7f2a27a742f798510f3e5ad88dbe84871e5168e2120c3d5720"
-dependencies = [
- "windows-link",
- "windows-result",
- "windows-strings",
-]
-
-[[package]]
-name = "windows-result"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7781fa89eaf60850ac3d2da7af8e5242a5ea78d1a11c49bf2910bb5a73853eb5"
-dependencies = [
- "windows-link",
-]
-
-[[package]]
-name = "windows-strings"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7837d08f69c77cf6b07689544538e017c1bfcf57e34b4c0ff58e6c2cd3b37091"
-dependencies = [
- "windows-link",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.48.0"
diff --git a/crates/salvium-rpc/Cargo.toml b/crates/salvium-rpc/Cargo.toml
index b61ed10..3130b10 100644
--- a/crates/salvium-rpc/Cargo.toml
+++ b/crates/salvium-rpc/Cargo.toml
@@ -6,7 +6,7 @@ description = "Async and blocking RPC clients for Salvium daemon and wallet"
 
 [dependencies]
 salvium-types = { path = "../salvium-types" }
-reqwest = { version = "0.12", features = ["json"] }
+reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
 tokio = { version = "1", features = ["rt", "time", "macros"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"
diff --git a/crates/salvium-wallet/Cargo.toml b/crates/salvium-wallet/Cargo.toml
index ca46e67..0e606ff 100644
--- a/crates/salvium-wallet/Cargo.toml
+++ b/crates/salvium-wallet/Cargo.toml
@@ -22,7 +22,7 @@ ml-kem = { version = "0.2", features = ["deterministic"] }
 hkdf = "0.12"
 sha2 = "0.10"
 chacha20 = "0.9"
-reqwest = { version = "0.12", features = ["json"], default-features = false, optional = true }
+reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"], optional = true }
 hidapi = { version = "2.6", optional = true }
 
 [features]
diff --git a/crates/salvium-wallet/src/sync.rs b/crates/salvium-wallet/src/sync.rs
index d5e76b6..b4a05c2 100644
--- a/crates/salvium-wallet/src/sync.rs
+++ b/crates/salvium-wallet/src/sync.rs
@@ -52,10 +52,6 @@ struct BatchController {
     max_batch: usize,
     target_batch_time_ms: u64,
     consecutive_errors: u32,
-    /// Approximate max bytes per batch (mobile-friendly cap).
-    max_batch_bytes: usize,
-    /// Last observed bytes per second.
-    last_bytes_per_sec: f64,
 }
 
 impl BatchController {
@@ -66,16 +62,11 @@ impl BatchController {
             max_batch: 1000,
             target_batch_time_ms: 1000,
             consecutive_errors: 0,
-            max_batch_bytes: 2 * 1024 * 1024, // 2 MB
-            last_bytes_per_sec: 0.0,
         }
     }
 
-    /// Adjust batch size based on timing and throughput.
-    ///
-    /// `blocks` is the number of blocks in the batch, `bytes` is the total
-    /// response size, `elapsed_ms` is how long the batch took.
-    fn adjust(&mut self, elapsed_ms: u64, had_error: bool, blocks: usize, bytes: usize) {
+    /// Adjust batch size based on elapsed time per batch.
+    fn adjust(&mut self, elapsed_ms: u64, had_error: bool) {
         if had_error {
             self.batch_size = (self.batch_size / 2).max(self.min_batch);
             self.consecutive_errors += 1;
@@ -87,26 +78,11 @@ impl BatchController {
 
         self.consecutive_errors = 0;
 
-        // Track throughput.
-        if elapsed_ms > 0 {
-            self.last_bytes_per_sec = bytes as f64 / (elapsed_ms as f64 / 1000.0);
-        }
-
-        // Time-based scaling.
         if elapsed_ms < self.target_batch_time_ms {
             self.batch_size = (self.batch_size + self.batch_size / 2).min(self.max_batch);
         } else {
             self.batch_size = (self.batch_size - self.batch_size / 4).max(self.min_batch);
         }
-
-        // Byte-cap: if the batch exceeded the byte limit, scale down proportionally.
-        if blocks > 0 && bytes > self.max_batch_bytes {
-            let avg_block_bytes = bytes / blocks;
-            if avg_block_bytes > 0 {
-                let byte_limited = self.max_batch_bytes / avg_block_bytes;
-                self.batch_size = self.batch_size.min(byte_limited).max(self.min_batch);
-            }
-        }
     }
 
     /// Return the batch size for the next round, capped by remaining blocks.
@@ -229,7 +205,7 @@ impl SyncEngine {
             let batch_data = match batch_result {
                 Ok(r) => r,
                 Err(e) => {
-                    controller.adjust(batch_timer.elapsed().as_millis() as u64, true, 0, 0);
+                    controller.adjust(batch_timer.elapsed().as_millis() as u64, true);
                     if let Some(tx) = event_tx {
                         let _ = tx.send(SyncEvent::Error(e.to_string())).await;
                     }
@@ -275,7 +251,7 @@ impl SyncEngine {
                             }
 
                             current = reorg_start;
-                            controller.adjust(batch_timer.elapsed().as_millis() as u64, true, 0, 0);
+                            controller.adjust(batch_timer.elapsed().as_millis() as u64, true);
                             continue;
                         }
                     }
@@ -283,7 +259,7 @@ impl SyncEngine {
             }
 
             if bin_blocks.len() != heights.len() {
-                controller.adjust(batch_timer.elapsed().as_millis() as u64, true, 0, 0);
+                controller.adjust(batch_timer.elapsed().as_millis() as u64, true);
                 if let Some(tx) = event_tx {
                     let _ = tx
                         .send(SyncEvent::Error(format!(
@@ -315,12 +291,6 @@ impl SyncEngine {
             }
 
             // ── 3. Parallel parse + sequential store ────────────────────
-            // Estimate batch bytes for throughput tracking.
-            let batch_bytes: usize = bin_blocks
-                .iter()
-                .map(|e| e.block.len() + e.txs.iter().map(|t| t.len()).sum::<usize>())
-                .sum();
-
             // Phase 1: Parse + scan all blocks in parallel via spawn_blocking.
             let scan_ctx_clone = scan_ctx.clone();
             let parse_results: Vec<ParsedBlockResult> = {
@@ -521,13 +491,7 @@ impl SyncEngine {
             }
 
             // ── 6. Adapt batch size + race nodes ────────────────────────
-            let n_blocks = bin_blocks.len();
-            controller.adjust(
-                batch_timer.elapsed().as_millis() as u64,
-                false,
-                n_blocks,
-                batch_bytes,
-            );
+            controller.adjust(batch_timer.elapsed().as_millis() as u64, false);
             pool.maybe_race().await;
         }
 
@@ -2470,9 +2434,9 @@ mod tests {
     fn test_batch_controller_scale_up() {
         let mut ctrl = BatchController::new();
         // Fast batch → scale up by 50%
-        ctrl.adjust(500, false, 64, 100_000); // 500ms < 1s target
+        ctrl.adjust(500, false); // 500ms < 1s target
         assert_eq!(ctrl.batch_size, 96); // 64 + 32
-        ctrl.adjust(500, false, 96, 150_000);
+        ctrl.adjust(500, false);
         assert_eq!(ctrl.batch_size, 144); // 96 + 48
     }
 
@@ -2481,7 +2445,7 @@ mod tests {
         let mut ctrl = BatchController::new();
         ctrl.batch_size = 40;
         // Slow batch → scale down by 25%
-        ctrl.adjust(5000, false, 40, 100_000); // 5s > 3s target
+        ctrl.adjust(5000, false); // 5s > 3s target
         assert_eq!(ctrl.batch_size, 30); // 40 - 10
     }
 
@@ -2489,7 +2453,7 @@ mod tests {
     fn test_batch_controller_error_halves() {
         let mut ctrl = BatchController::new();
         ctrl.batch_size = 20;
-        ctrl.adjust(0, true, 0, 0);
+        ctrl.adjust(0, true);
         assert_eq!(ctrl.batch_size, 10); // 20 / 2
         assert_eq!(ctrl.consecutive_errors, 1);
     }
@@ -2498,9 +2462,9 @@ mod tests {
     fn test_batch_controller_consecutive_errors_drop_to_min() {
         let mut ctrl = BatchController::new();
         ctrl.batch_size = 50;
-        ctrl.adjust(0, true, 0, 0); // 25
-        ctrl.adjust(0, true, 0, 0); // 12
-        ctrl.adjust(0, true, 0, 0); // 3 consecutive → drops to min
+        ctrl.adjust(0, true); // 25
+        ctrl.adjust(0, true); // 12
+        ctrl.adjust(0, true); // 3 consecutive → drops to min
         assert_eq!(ctrl.batch_size, ctrl.min_batch);
         assert_eq!(ctrl.consecutive_errors, 3);
     }
@@ -2508,10 +2472,10 @@ mod tests {
     #[test]
     fn test_batch_controller_error_resets_on_success() {
         let mut ctrl = BatchController::new();
-        ctrl.adjust(0, true, 0, 0);
-        ctrl.adjust(0, true, 0, 0);
+        ctrl.adjust(0, true);
+        ctrl.adjust(0, true);
         assert_eq!(ctrl.consecutive_errors, 2);
-        ctrl.adjust(1000, false, 64, 100_000);
+        ctrl.adjust(1000, false);
         assert_eq!(ctrl.consecutive_errors, 0);
     }
 
@@ -2519,7 +2483,7 @@ mod tests {
     fn test_batch_controller_respects_max() {
         let mut ctrl = BatchController::new();
         ctrl.batch_size = 90;
-        ctrl.adjust(100, false, 90, 100_000); // fast → scale up
+        ctrl.adjust(100, false); // fast → scale up
         assert!(ctrl.batch_size <= ctrl.max_batch);
     }
 
@@ -2527,7 +2491,7 @@ mod tests {
     fn test_batch_controller_respects_min() {
         let mut ctrl = BatchController::new();
         ctrl.batch_size = 2;
-        ctrl.adjust(10000, false, 2, 50_000); // slow → scale down
+        ctrl.adjust(10000, false); // slow → scale down
         assert!(ctrl.batch_size >= ctrl.min_batch);
     }