diff --git a/make.conf/00common b/make.conf/00common
index 25c4332..ff6f832 100644
--- a/make.conf/00common
+++ b/make.conf/00common
@@ -1,3 +1,5 @@
+RUSTFLAGS="-C target-cpu=native -C opt-level=3 -C lto=thin -C linker=clang -C link-arg=-fuse-ld=mold"
+
 PORTAGE_STRIP_FLAGS="--strip-unneeded -N __gentoo_check_ldflags__ -R .GCC.command.line"
 
 # clang llvm-libunwind
diff --git a/package.use/chromium b/package.use/chromium
index 7690c90..81a9c2a 100644
--- a/package.use/chromium
+++ b/package.use/chromium
@@ -2,4 +2,4 @@ sys-libs/zlib minizip
 
 net-libs/nodejs inspector
 
-www-client/chromium custom-cflags qt6
+www-client/chromium custom-cflags lto qt6