No no links between that bug and lag period.
but it is maybe a problem from my part (sorry)…
I just try to reset controls and with the original disposition I haven’t any problem. Maybe a hardware (?) problem on my computer when I use simultaneously 2 keys close. Not sure if it possible but it is how I feel.
edit : Well sometimes I can’t use simultaneously the key “up” and “left” no matter what are this controlling on the game so i will just set up the control a bit differently from what I set up first.
Sorry for disturbing you as it seems to be a problem from my computer !