diff --git a/oak_functions_service/src/wasm/wasmtime.rs b/oak_functions_service/src/wasm/wasmtime.rs
index fe6aa3e5634..023f4b54140 100644
--- a/oak_functions_service/src/wasm/wasmtime.rs
+++ b/oak_functions_service/src/wasm/wasmtime.rs
@@ -395,7 +395,8 @@ impl WasmtimeHandler {
         logger: Arc<dyn OakLogger>,
         observer: Option<Arc<dyn Observer + Send + Sync>>,
     ) -> anyhow::Result<Self> {
-        let config = wasmtime::Config::new();
+        let mut config = wasmtime::Config::new();
+        config.cranelift_opt_level(wasmtime::OptLevel::Speed);
         let engine = wasmtime::Engine::new(&config)
             .map_err(|err| anyhow::anyhow!("couldn't create Wasmtime engine: {:?}", err))?;
         let module = wasmtime::Module::new(&engine, wasm_module_bytes)