I tho it's because of my own issue with my rig (my rig is really low right now, only have Intel Integrated Graphics) but before 6.00 hell even before 6.01 which EW release, i don't have any stutter issue, now i had it almost every dungeon, I don't know what to do anymore, but i kinda "struggle" and "tolerate" with it, with having a macro to turn the sound off everytime dungeon, luckily my MSQ had done before 6.01 so there's that