Hey, I'm from the UK and when its 10am-3-4pm GMT the servers are pretty much fine. But when it gets to 5pm GMT onwards I can log in but it lags alot. I can't move, I can't click on anything... Well I can but it takes atleast a minute to work.
I'm not here to flame or anything, I'm just suggesting you get afew more servers or try and split them up into US, EU servers etc. Would make playing alot easier for people in other countries than the US