diff --git a/.github/workflows/update-os.yml b/.github/workflows/update-os.yml
index 9522d87..958087a 100644
--- a/.github/workflows/update-os.yml
+++ b/.github/workflows/update-os.yml
@@ -26,7 +26,7 @@ jobs:
           # Set the base_image to the desired Raspberry Pi OS version
           base_image: https://downloads.raspberrypi.com/raspios_lite_armhf/images/raspios_lite_armhf-2024-03-15/2024-03-15-raspios-bookworm-armhf-lite.img.xz
           image_additional_mb: 3072 # enlarge free space to 3 GB
-          optimize_image: false
+          optimize_image: true
           commands: |
             cd /home
             sudo useradd -m -p "$(openssl passwd -1 $INKY_INITAL_PASSWORD)" inky
@@ -88,7 +88,7 @@ jobs:
             # temporarily disabled to allow pisugar support
             # echo 'ALL   ALL=(ALL:ALL) PASSWD: ALL' | sudo tee -a /etc/sudoers.d/010_require_sudo_password
             # allow some time to unmount
-            sleep 10
+            sleep 30
 
       - name: Compress the release image
         run: |