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

[Goodberry]

But Sunarie, THAT's exactly my point; the 300ms in this game will get you killed because nearly all the game is designed about split-second reactions. 300ms latency would get me killed in WoW, too, if it was designed like that!
The perceived issue many have with this game is being killed when on your screen you are well out of the red zone. It's visually annoying, but it is NOT the real issue! In WoW, for example, what would happen with a big lag is that you would stay within the circle too much and be killed there: it happened to me in the early Cataclysm dungeons, that had very unforgiving mechanics.
My point it: in WoW, when they based fights around split-second-dodge-or-die mechanics, lag would kill people exactly as it does in this game! Only thing changing was that you saw yourself killed within the danger zone, instead of outside.
P.S.
Sorry if it seemed I was comparing you to a drunkard, that was not my aim: I was just using a joke as an example of an impossible solution.