diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0e90634f..80aa7823 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -62,6 +62,9 @@ jobs:
 
       - name: Build
         env:
+          RUSTFLAGS: ${{ startsWith(matrix.target, 'x86_64') && '-C target-cpu=x86-64-v3' || '' }}
+          CARGO_PROFILE_RELEASE_OPT_LEVEL: "3"
+          CARGO_PROFILE_RELEASE_LTO: "thin"
           # Embed the release tag as the version. The tag itself does
           # not exist until the release is published, so `git describe`
           # cannot produce it while building a draft's assets.