FS22 - Framerate issue after purchasing machines

[Grenz]

When I build a farm, I have 60+ FPS. When I buy basic machines (tractor, plow etc) I have 25-30FPS. My PC have 2gb vram, 12gb ram, win10. My best friend with 8gb vram and 32gb ram, win10 have same problem. How to solve it?