I have played a variety, and most of the time, not all, I do admit, I don't have problems. MMO's like guild wars 2, League of legends, wurm, mount and blade as well. It might have something to do with my ISP, I'm not sure, and I'm not the most techinically savvy person around
But I hope that the experience will be satisfactory when the game releases and all the optimization has been performed.