I have a 2017 27" iMac with Radeon Pro 580. Editing photos on Catalina is terribly slow compared to Mojave. Most of the time Photos gets stuck on export and only after several minutes it works again. Also I have the com.apple.photos.ImageConversionService constantly running and making the entire Mac slow as hell. I can't even watch videos with full FPS when Photos is doing some background work.
Anyone have a similar issue?
Btw this was a 100% clean install.
Anyone have a similar issue?
Btw this was a 100% clean install.