FPS has nothing to do with the server knowing where you ACTUALLY ARE on the map.. and the server ONLY CHECKS IT EVERY 0.3 seconds as confirmed by the devs.

If you have a 100ms latency to the server, it will NOT know where you actually are until 0.1 to 0.4 seconds AFTER you moved. That in itself is the problem. I play from Australia to JP servers, with 200ms latency. The server literally thinks I am at a certain spot HALF A SECOND ago. Can I dodge AoE? Sure, if my reaction is perfect or move ahead in anticipation of an aoe.

This is the only MMO where I've played which does this positional check so slow in frequency. If they changed it to every 0.1s, most people would have no issues at all.