Sometimes when I play, it seems the game is having problems determining where the position of entities are. My character will often bounce around the screen and sometimes even mobs do as well, and even so, I seem to either miss with my attacks, even if it's a direct hit, visually, or hit them when I attack in a completely different place. I doesn't seem to be my internet connection cause it has full bars, but it did get worse when someone joined my party. It also seems to affect my (gigawatt) bullets. I haven't been having the problem lately but it's annoying when it does happen. Why is it like that?