Quote (exonerated @ Jul 29 2012 02:33am)
Yes this is a common problem because of the way TERA was originally coded. It only uses 1.5-2 cores of your CPU. So your CPU is bottlenecking you.
Overclocking your CPU would help. I dont remember exactly if people found a fix for the UI glitchyness.
Im running an AMD Phenom II 955 BE Overclocked to 3.8Ghz with a Radeon HD 6870 and pulling 100+ FPS at times. Otherwise im smooth sailing with at least 40-50 FPS.
I also have this problem, sometimes my CPU will be maxed (50%), and my GPU will be sitting at 0% usage. Hopefully they update TERA to use 4 cores ; )
Try reading topics on the tera.enmasse forums, lots of discussion about this problem and tricks to fix it there.
thx for the info mate, i will look into it