Rapt

Hey! So I'm a returning player and I noticed that the game has frequent FPS drops. I didn't have this problem 4 years ago, and since I've upgraded my pc while the game still looks the same. I don't believe that the problem is with my PC as I can run most games 144fps max graphics, but in this game my PC gets fps drops multiple times in a second with 60fps low graphics. Is there something I'm missing?