diff --git a/.github/workflows/build-image.yml b/.github/workflows/build-image.yml
index b9a142a..5ffd594 100644
--- a/.github/workflows/build-image.yml
+++ b/.github/workflows/build-image.yml
@@ -91,7 +91,7 @@ jobs:
 
       - name: Compress image
         run: |
-          xz -T0 -9 -c image/output/ps5-${{ matrix.distro }}.img \
+          xz -T0 -4 -c image/output/ps5-${{ matrix.distro }}.img \
             > image/output/ps5-${{ matrix.distro }}.img.xz
 
       - name: Upload to R2