Use Windows version of the game. Force proton experimental in steam. You must launch the game once in desktop mode to disable directx12 in the launcher settings. After it is disabled you can launch from gaming mode like normal. I get as high as 60fps in less crowded areas/tombs AA: TAA Texture quality: high Texture filter: 4x anisotropic Shadows: normal Ambient Occlusion: BTAO DoF: Normal LoD: Normal Tessellation: On Bloom: Off Motion Blur: Off SSR: On SSR SHADOWS: Off Pure hair: normal Lens flares: off