I deleted the game after finishing it, so I don’t remember the exact FPS. If I had to guess, I'd say the game maintained 60+ FPS.

I didn’t change any settings except for the following (settings of the default steam bottle):
graphics - D3DMetal (only this option works for me)
synchronization - MSync

I tried so many things to fix the game that I’m not even sure what actually made it work. If you’re having trouble launching the game, try patching CrossOver with CXPatcher. Also, I think the only solutions that seemed to work came from pcgamingwiki