To the people complaining about the .3 positional update. This is a completely normal number in the MMO world, technically you can start polling the server .2 seconds instead of .3 but can you imagine the increased stress on the servers if you change it from ~3 times per second to 5~ times per second, per user? Have you thought of the fact that there are technical limitations? It is likely that their server infrastructure simply can't handle that amount of stress.

This is also very normal; do you think WoW is responsive and fluid because it updates your position every .1 seconds or something? No. The reason WoW and some other MMO's give the illusion of it being fluid is because of proper predictive netcoding combined with trusting the client more. I emplore you to read up on latency compensation in internet games.

This is not to say that the ball doesn't lie with SE. This is just to say you're blaming it on the wrong aspect.