diff --git a/docker/cargo-config.toml b/docker/cargo-config.toml
index 35de4ad8..dfb671bd 100644
--- a/docker/cargo-config.toml
+++ b/docker/cargo-config.toml
@@ -1,7 +1,29 @@
 [target.x86_64-unknown-linux-gnu]
 linker = "clang"
-rustflags = ["-C", "link-arg=-fuse-ld=/usr/local/bin/mold"]
+rustflags = [
+    # faster linker
+    "-C", "link-arg=-fuse-ld=/usr/local/bin/mold",
+    # potentially faster. https://github.com/aws/aws-graviton-getting-started/blob/main/rust.md
+    "-C", "target-feature=+lse",
+    # potentially faster. https://nnethercote.github.io/perf-book/build-configuration.html
+    "-C", "target-cpu=native",
+    # tokio unstable is needed for tokio-console
+    "--cfg", "tokio_unstable",
+    # uuid unstable is needed for zerocopy deserialize
+    "--cfg", "uuid_unstable",
+]
 
 [target.aarch64-unknown-linux-gnu]
 linker = "clang"
-rustflags = ["-C", "link-arg=-fuse-ld=/usr/local/bin/mold"]
+rustflags = [
+    # faster linker
+    "-C", "link-arg=-fuse-ld=/usr/local/bin/mold",
+    # potentially faster. https://github.com/aws/aws-graviton-getting-started/blob/main/rust.md
+    "-C", "target-feature=+lse",
+    # potentially faster. https://nnethercote.github.io/perf-book/build-configuration.html
+    "-C", "target-cpu=native",
+    # tokio unstable is needed for tokio-console
+    "--cfg", "tokio_unstable",
+    # uuid unstable is needed for zerocopy deserialize
+    "--cfg", "uuid_unstable",
+]