I am having similar issues with my new install of PS 25 (PS 23 still works0.
Startup crashes half the time.
Much delay (spinning wheel).
Issues importing. (Recently I Reset, which helped for a while).
I am considering uninstall/reinstall but this (complicated) directive from Corel suggests I will lose Pinn 23 ("uninstall all versions before running this tool")
https://kb.corel.com/en/128467
Discouraging, as I am user since Pinn12.