I’ve got an i9 10850k with 32 GB or 3200MHz ram.
I do think its a CPU issue rather than a GPU one though. Lowering resolution makes very little difference to my frame rates. I only play in VR and I set my Quest 2 resolution 5408 x 2736 which is the Quest’s maximum render resolution in the Oculus app. Lowering that resolution doesn’t improve performance suggesting the CPU is the bottleneck