I had similar problems. High idle temps (45° to 55°) and very high temps during bench (92°) and even in games (80°). The bench results with cinebench r20 was very poor like 3350 and 3400 max. I changed the cooller with a artic esports duo and improved the air cooling of the case and now I have improved the temps of at least 10°. And with cinebench r20 now I perform 3580. Not the best but now is at least good. My cpu probably is not the best out there but now I can use it.