I used to have stutters/fps drops every 30 seconds no matter where I was. But I'm glad to say that my game performance has improved considerably! No longer do I have rhythmic stutters on a beach or in most areas! What did the trick for me was the following:
Place the files into your save folder and when prompted click replace all files (doing so may affect your achievements so keep that in mind) Start the game from the PoE2.exe , NOT from steam. YOU MUST KEEP STEAM CLOSED. If not, this will not work (at least in my experience) When starting up the game, play around with the save provided in the download file to check if your performance, or just make a new save. This may or may not work on in-progress saves so please keep that in mind. If you see that the performance has not improved with your in-progress save, then you will have to start to a new save
This really saved this game for me. Sadly I can't play it through steam or else the performance issues return. The only performance issues I had after the fix was the following:
Stuttering in combat or in menus every once in awhile
Low fps/stutter in fort dead light and queens berth.
But these issues are welcomed compared to the alternative stutter-fest that was the alternative performance.
Special thanks to RefridgeratorJP for the download file and helping me out with this! I hope this helps someone with similar performance issues!
Also, for those wondering this is my setup
-GTX 1080 Ti
-Standard Monitor (NO G-Sync)