Hello,
I just wanted to chime in that, I’m currently running on a 5950x and 6900XT. The 5950x wont be much different from the 5900x since the game doesn’t utilise that many cores. I get ridiculous FPS in the hundreds in some areas i hit the max cap of 250fps. In raids and other content I get around 100-120fps.
This is on fairly medium-high settings on DX11 with a 2560x1440 monitor.
I would hazard a guess that there is something wrong with your setup. From a guess your being CPU bound somehow since your GPU isn’t activating its full power state?