I experienced this in the second tier of my Forza career, in the second race of the ‘‘Breakout’’ series… The race was on the Yas Marina circuit. Was driving the extra long version of the race.
This started out with just a grand stand at the end of the longest straight, but at around lap 8 it got unplayable as you can see above.
Specs:
Laptop: Acer Predator G9-593
I7-7700HQ
16gb RAM
Nvidia GTX 1070 (DrIver 385.69 , no updates avaliable)
Graphics preset: Highest possible settings with shadows turned to medium/1080p/60fps with vsync
DxDiag: https://pastebin.com/Sa6xYvwN
Anyone got a fix for this?