The game stutters and I get the attached benchmarks. As you can see, GPU usage is constantly between 0 and 100%. The Commit Charge seems to be full. I don't have this problem with any other game. Any ideas?
Ryzen 5 2600
Win 10 x64 1809
EDIT1: I can't see Afterburner's ingame-overlay. When I use the Radeon overlay, I have 60+ FPS most of the time.
EDIT2: I can repreoduce the issue in both game modes.
EDIT3: This also happens with graphics set to low.
EDIT4: Even on low details in Full HD, the game seems to use all my 8gb of vram.
EDIT5: 1.5.0 and 1.5.1 tested