68C. --too hot. Probably throttling.
Oops, sorry, misread.
You getting full wattage on the cpu?
View Power profile thru Control Panel.
It's on High Performance mode, I'm sure that the game is unoptimized, it has problems with utilizing system on lower settings, I cranked all settings up to extreme and it actually started to utilize my GPU (80-90% GPU usage and I get the same FPS I got on lowest settings lol.)
TL;DR: Lowering settings do nothing performance wise, game just looks worse.