here is the discussion topic. There is 246 replies, i won’t explain it all again here.
You missunderstand the problem and the impact.
It will most likely kill the purpose of PvP if it’s not capped.
People will just have to put the maximum possible resolution (from screen or from other way as you say yourself) and be able to aim other players from wp to town.
It’s clearly not how the game was intended to be played.
If so then forgot PvP and D2R is 100% pvm game like D3, which is really sad when you know how good D2 pvp can be.