Yep I'm getting really bad performance with 3080 too. Stuttering with vsync on or bad screen tearing with it off. Weirdly its super smooth in windowed mode.

I'm getting really bad stuttering. i7 10700k, RTX 3080, 64GB RAM. I'm able to get 70-90fps on ultra high settings but I need vsync because I'm using an ultrawide 60hz monitor. But the stutter is so bad. Weirdly, everything is super smooth in windowed mode.

@adam_chattaway

Same here. Severe stutterring with Vsync on, terrible screen tearing with it off. I'm using a 3080, getting 70-90 fps on Ultra settings, but im using a 60hz monitor so I want V-sync on. Weirdly, everything runs perfectly smooth in Windowed mode, only get stuttering/tearing in borderless and fullscreen.