This has been happening to me for some time now but I just can't take it anymore.
After some time has passed (about 5 or so matches, 1 hour in) the game Lags with other players starting to become real snappy with their attacks/guard breaks and parry me after I hit them or come back to life as if i have really bad internet connection but my ping is a stable 16-26. Restarting fixes the issue but the problem will happen again after a couple games in.
the game runs perfect with stable fps above 100+, its just that my fight with others is as if I have 300 ping. I do not lag for them from what I'm told.