Game lag after activating IME in-game...

I hope there is a workaround to this problem as Gw's performance sort of went sluggish despite it showing no dip in framerates, the moment I activate Microsoft's IME via shortcut key (Alt + Shift) to type in my native language. Traditionally my solution to this problem is to restart Gw client to restore its performance but it is kind of annoying to do that in the long run. So any solutions to this?

For most people alt+shift just results in a GW crash.
Be glad it just gives you lag.

Thanks for mentioning that, never knew Gw has something against Alt+Shift. I solved it by changing key settings.

many games do not like alt + shift or alt + tab etc... although it also seems to vary from computer to computer - a possible solution would be to try running in window mode.