I mean if you have stable connection it's all just timing. Sure its annoying for you but it's just as annoying for anyone else to fight you. You get free 30 block hits and we have to rod you like 4 times before you move a block.thats delayed hits, in invaded pvp its not just sword pvp, rodding is aids, bow boosting can be aids, insta'ing is really aids we have to wait like a whole second after a hit to insta
Also pot pvp, soup and mini games like sumo = advantage for you