I never come close to 2% I am at 0.27 % reading with Process Lasso and in task manager 0.1 % as it is as much use as a chocolate tea pot.
Monitoring GPU temp GPU usage, Core Clock Mem CPU & GPU %s and fan control maybe the VRAM monitoring is the killer.
I have a spike here and there but not huge.
Tested With DCS VR replays.
Sorry OP for going a little of topic.