Soldato
- Joined
- 18 Oct 2002
- Posts
- 16,236
- Location
- The land of milk & beans
It's simply because iRacing is extremely poorly optimised, and has massive differences in model detail between the older and newer tracks. I have similar issues on my 980, although I seem to be one of the lucky ones where it sits quite happily without stutters Vsync'd at 60FPS.

, has given me a few things to think about.