Is there a way to improve performance without sacrificing too many details. The game is currently unplayable in DX11 mode. I get like 0.5 FPS in the menu with DX11 active. Im using DX9 with max details to get a steady 70FPS average. The game menu doesn't allow it but can I mod setting files to selectively choose settings? I would love to get maxed out textures and geometry, but I don't need stuff like AA and probably ambient occlusions either. 2560x1600 screen here so the game really hurts.