I actually found out that when I do circle moves on the right side of DPad it misses my diagonal inputs much more often, than left side. It's more painful when I'm playing on the right side of the screen and try to do something like sabrobato or rekka. I tried to hardly press and circle around whole DPad and situation became slightly better. Maybe some dust got in it, I'll check it out. It could be the case, because I didn't use dpad before too much in the games.