I noticed that when I start the game, I have a solid 100 FPS in the Nautiloid area, but later on it dips into 40 in certain areas ( like the Underdark) while only using like 40% of my GPU.
Some areas definitely do better than others. The sheer drop-off is really staggering in some cases though. It's like the game is trying to draw literally everything from every area at once no matter where your party is.
