I'm using a 980ti strix, i7 5930k with 16gb ram on an ssd.... I'm not familiar with what mirror mode option is, so I've just been putting it on 3, and aliasing on 3... Though I don't see a notable difference when changing them. Also on the ultra preset... Though I'm unsure of what's going on when it occasionally gets stuttery? I check my FPS counter via replay and it stays at 89.X FPS almost 100% of the time. Anyone with similar hardware having similar issues?