Sorry SE, but endgame won't work if you don't fix something.

[Silverwalk]

If SE just fixed their internal latency issues or updated the character positions every 30ms in hardmode content there wouldn't be an issue.

Totally agree. If the client sent an update when you cleared the AoE area it would solve the problem for most people, without nerfing the fights.

http://www.youtube.com/watch?v=3leMnErroL0 this video sums it all up.
For me it's a bit better but not much, this is aside from the 2-3 second freezes.

That is a good video, thanks to the person who made it!