I remember this never used to happen with Gnome 3.4 and earlier. I think it started happening when they announced this frame-perfect timing/rendering system. S

I remember this never used to happen with Gnome 3.4 and earlier. I think it started happening when they announced this frame-perfect timing/rendering system. Solved a tearing problem but introduced a lag problem :) I guess you're right though, the lag problem should be solved with Wayland.