If you are suffering CPU shuttering/game slowed down, please check your windows energy profile. I Just noticed that when "Energy Saving"is selected, rFactor2 is not able to gain full CPU speed (Ghz), hence the game will suffer a lot. I know that this seems a very stupid suggestion, but I needed more than a month to get the solution to my poor performances. And, at the end of the day, the solution was very easy Cheers
