diff --git a/.github/build_windows_packages.ps1 b/.github/build_windows_packages.ps1
index 016cd602..80e198e0 100644
--- a/.github/build_windows_packages.ps1
+++ b/.github/build_windows_packages.ps1
@@ -164,7 +164,7 @@ Copy-Item -Path $curr -Destination $pkgName -Recurse
 $7zPath = "$pkgName.7z"
 $start = Get-Date
 Write-Host "Compress Starting at $start"
-& "C:\Program Files\7-Zip\7z.exe" a -t7z "$7zPath" "$pkgName" -m0=lzma2 -mx=9 -md=256m -ms=on -mmt=on -bsp1
+& "C:\Program Files\7-Zip\7z.exe" a -t7z "$7zPath" "$pkgName" -m0=lzma2 -mx=5 -md=256m -ms=on -mmt=on -bsp1
 $end = Get-Date
 Write-Host "Elapsed time: $($end - $start)"