I am currently having this issue as well. My server console gets spammed with Player is sending move packets to frequently (# packests since last tick), even if im the only one on. The only time I had it to where it stopped was if i used local host, but even then i didn't do to much testing on it, since I use a different computer. Another thing that happens when its going off is it stops me in place for a second if im flying or sprinting, making it hard to get around places quickly. It does not happen to often when sprinting, but when flying with Elytra it happens almost every 5 seconds.
I am getting this as well.