Slow boot after upgrade to OCLP 2.02 on Mac 5,1

Hi,

I have a Mac Pro 5,1 running Monterey with an ATI Radeon 5770 (non-metal). It formally had OCLP 1.3.0. The boot time was quick, around 20-30 seconds, especially the appearance of the OCLP boot screen.

I recently updated OCLP to 2.0.2 and reinstalled the root patches. When I boot, a blank white screen is shown for 1-2 minutes, the OCLP boot screen is shown briefly but it's almost as it's running in treacle. The icons are very slow to load and when they do the boot screen disappears. There's no opportunity to chose the boot drive.

After that I get to the login screen but this is now taking 2-3 minutes instead of 30 seconds. Does anyone know what the cause might be?

Cheers.