LOW FPS is killing the fun!

I`m so frustrated of how the ingame fun is actually "killed" by the insane drop in FPS on an more then enough good gamingPC that runs other high grapichs demanding games perfectly.
Tried ALL the tips and tricks I can find out there, but NOTHING helps. POE2 is on halt atm until it`s actually playable and this low FPS issue is fixed. Love the game btw, so much fun if it just could run smoothly. Looking forward to a fix.