At 1min 7 sec and 1 min 45 seconds into the track I see my lowest FPS in the Death Track with the default views and the settings as indicated in the post. So those are the lowest FPS at the two respective times. Note that VSYNC caps at 60.
Unknown which if any one particular component is the sole bottleneck. When I build em I do my research to ensure I don't make the mistake of not properly matching the capacity of the critical components. Otherwise the upgrade/build is a bit pointless.
