I'm having the same issue. Hotbar lag that makes mnk an unplayable class. And mnk is my main, so I'm rly screwed. Gl3 has been eluding me for the past few days and perfect balance only works half the time. It's rly annoying. I'm gonna have to run coil as smn next week because the lag is so bad. At least I can kinda get away with lagging as smn cuz of all the dots