diff --git a/rspy/Cargo.toml b/rspy/Cargo.toml
index 5a7735a0f..1ebbe1204 100644
--- a/rspy/Cargo.toml
+++ b/rspy/Cargo.toml
@@ -22,3 +22,7 @@ crate-type = ["cdylib"]
 opt-level = 2
 debug = 0
 codegen-units = 256
+
+[profile.dev.package."*"]
+opt-level = 3
+codegen-units = 16