Lag with Fetish

[Pure]

It is a new update and fairly large expansion. I am having issues as well with lag and taking longer and longer to zone. However, I am using primarily eXtremeUI for now.
Do like Zonx described and give it a little while.
It is slightly possible could be small memory leaks somewhere.
During Beta it played very nicely, but it is alot of difference when such a large amount of people are all on at once which is hard to test in Beta phases.