Post Processing is a huge FPS hog
I have found out that many of the largest changes in Frame rate come from the Post Processing Effect going from LOW to Medium. And a large degree of the drop comes from the reflections. I go from abo...
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My system info is attached
Its probably the reflections. If i turn Postprocess.Screenspaceraytracingenable to 0 it jumps back up to over 100 fps. Why is the move from LOW to MEDIUM that much of a performance drop?
I had the exact same issue, I'm on a GTX 970. This happened when I updated to the latest Nvidia drivers, 398.36. I usually get a solid 60fps in any situation on this game, but Theed seemed to be particularly bad, probably due to the massive lighting differences and heavy use of Post Processing (polished floors and tiles). I reverted back to the optimal game drivers released in November 2017 for this game and the issue disappeared. I can only assume the newer drivers mess about with the way Post Processing is handled by the GPU.
One interesting note, when the FPS did drop the GPU usage shot from mid 70's to 100%.
