I noticed really poor performance after starting a new project in 2021.3 on a 2019 MacBook Pro (Intel, AMD 5500M). I assumed it was something weird in our setup so I created a completely new project and hit play on the empty SampleScene. I'm getting very choppy framerates between ~30-50 FPS and In the profiler I see that the majority of the frame is spent waiting for the graphics card (GFX.WaitForPresentOnGfxThread). Turning on or off vsync does not seem to change performance. If I switch to OpenGL I see more consistent performance, and 90% of the frame is editor overhead. For comparison: a new URP project in 2019.4 has some of the same spikiness but runs at a much higher framerate on Metal (~100 in the stats view). What's going on here? Is there something I can do to fix this issue? It's really concerning to see such poor performance on both an empty scene and our very lightweight prototype project.