How much utilisation do you have on the CPU while playing?!?
Looks like overall CPU utilization averages around 40%, up to 50%.
If I look at more demanding areas of the map like downtown, my GPU utilization will go up to 87% and constant drops down to 70%. Never just holds at a constant usage like other games.
Also the AMD bug was fixed with Windows 11. I notice no difference at all between 10 and 11 so far.