diff --git a/rust/builder.go b/rust/builder.go
index 910965130..27eeec23d 100644
--- a/rust/builder.go
+++ b/rust/builder.go
@@ -44,6 +44,8 @@ func init() {
 
 func TransformSrcToBinary(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags,
 	outputFile android.WritablePath, includeDirs []string) {
+	flags.RustFlags = append(flags.RustFlags, "-C lto")
+
 	transformSrctoCrate(ctx, mainSrc, deps, flags, outputFile, "bin", includeDirs)
 }
 
@@ -59,11 +61,13 @@ func TransformSrctoDylib(ctx android.ModuleContext, mainSrc android.Path, deps P
 
 func TransformSrctoStatic(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags,
 	outputFile android.WritablePath, includeDirs []string) {
+	flags.RustFlags = append(flags.RustFlags, "-C lto")
 	transformSrctoCrate(ctx, mainSrc, deps, flags, outputFile, "staticlib", includeDirs)
 }
 
 func TransformSrctoShared(ctx android.ModuleContext, mainSrc android.Path, deps PathDeps, flags Flags,
 	outputFile android.WritablePath, includeDirs []string) {
+	flags.RustFlags = append(flags.RustFlags, "-C lto")
 	transformSrctoCrate(ctx, mainSrc, deps, flags, outputFile, "cdylib", includeDirs)
 }
 
diff --git a/rust/config/global.go b/rust/config/global.go
index 7846d212e..4d8778093 100644
--- a/rust/config/global.go
+++ b/rust/config/global.go
@@ -37,6 +37,9 @@ var (
 
 	GlobalRustFlags = []string{
 		"--remap-path-prefix $$(pwd)=",
+		"-C codegen-units=1",
+		"-C opt-level=3",
+		"-C relocation-model=pic",
 	}
 
 	deviceGlobalRustFlags = []string{}