Framerates and frametimes on my system with 5800X3D during WvW blob fights in EB during prime time, so it's the worst possible. The framerates fluctuate within 37-45 most of the time. All settings, including character model ones, highest possible.
Medium-sized WvW fights stay above 60, usually around 80fps.
In Lion's Arch I have 70-100 fps.
Only during blobs GPU usage drops below 100%. The thing is that I'm still waiting for GPU upgrade until new cards come out, so I'm still on old GTX 1060.