http://wccftech.com/turn-10-forza-motorsport-7-one-core/

Forza Motorsport 7 got a free demo earlier this week on Xbox One and Windows 10 PC. The latter version also included a benchmark mode so that every gamer could easily evaluate his/her PC’s performance in Forza Motorsport 7 so far.

By playing the demo, though, it’s readily apparent that while the average frame rate is not a problem at all, there is a lot of stuttering due to frame pacing issues. This immediately reminded PC gamers of early issues in Forza Horizon 3, which were eventually fixed with an update by Playground Games. In fact, several users noted that only one CPU core was being used to the fullest extent, while the others were relatively idle.