Movement
That’s pretty weird. I don’t know what to tell you. If it’s a persistent problem and you aren’t stuck on keyboard turning, many players actually unbind turn altogether and replace it with strafe in games like these.
This may or may not help but you could unbind all (like above mentioned) then change to something else, then rebind them back again.
Another issue may be for cordless keyboards that your battery may be low, I have this issue often or an Old keyboard could be a little wonky.
Basically in saying that I believe it’s a local problem and not an ANET server problem as movement, gliding, etc is done on our machines not theirs.
Best of luck
Proud member of uPOI, Undiscovered Point of Interest an OCX guild on NA.