This has been reported be for but was taken down . So I am reposting it. So when your behind other sprint cars and the dirt is coming off the tires it starts to jitter. Now the other person that reported this was told by a person it was his video card. No its not. This other person who I know has a good computer . But here is what I am running fx 8320 8 core 24 gigs elite memory ssd hard drive gtx 960 ti 4 gig video card this rig runs any game and the dirt coming off the other cars makes my computer jitter. Not sure if its the servers we are in the U. S.