If you change oceans to a more "quiet" ocean that tends to help with the lag sometimes. I've done that before for several reasons, to change oceans if you don't know, hit the "M" key and click on the arrow beneath your ocean name.
I personally don't experience a lot of a lag, it can get more glitchy on the "ideal" oceans more so than the "quiet" oceans.
Try that and see if it helps