This game runs much slower than in Windows, particulary without PROTON_USE_WINED3D=1. With it HDR rendering is disabled, making overall game darker and it's still slower and drops below 60 FPS on low settings with those specs. With PROTON_NO_D3D11=1 is just as slow as without PROTON_USE_WINED3D=1 and have graphic corruption with blood decals. PROTON_NO_ESYNC is recommended, as it increase responsibility of clicking a mouse in menus.