Move pushed me from 30ms to 105ms and the difference was pretty noticeable. Significant GCD clipping, combos take much more time to light up on the hotbar, casting cancels became much more delayed, and AOEs hit me when I dodge them the same way I always have. Using a tunneling service (Pingzapper) has helped bring the responsiveness a little closer to what it was like before, but not thrilled about the extra expense.