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Make a jedi consular.
Once ingame, hit "i" repeatedly to open and close your inventory. Notice there is no UI delay and it opens and closes very fluidly.
Hit level 2, get telekinetic throw.
Target a mob, cast telekinetic throw, and hit "i" repeatedly as you cast. Notice anything strange? Your client only seems to be able to open and close your inventory in between ticks (separate animation chunks) of TK throw. This is because this game's engine is poorly optimized. This is why Ilum lags. This is why you will never get any warzones which allow for more than 30 people at a time. There is no hope for future massive warfare ever being added. The game, despite being a AAA title released in 2011, is so poorly coded that it is incapable of adequately handling the MM part of MMORPG.
This isn't a flaw that can be remedied with additional content or bug fixes. This is a fundamental crippling defect of Hero Engine. I will be avoiding all other Hero Engine-based games like the plague (looking at you, Dominus).