Strange continuous glitches in rendering

[WindyGamer]

Esp in Dungeons, every 2-3 sec my screen pauses for about 1/2 sec. I have played 2 other games and there is no problem with those. I have a high end system and a 1 gb connection. Others seen this?
This has been going on since Dawntrail dropped.
Is there another thread for this?

Running around Udah does not show this. However, running outside, not mounted, it does not show it unless I use skills. Peleton first showed it, and when I shot some low level mobs it showed up. So looks like it has to do with skill animations or skills themselves. And of course dungeons are full of those. Happens today on MCH and two days ago as PLD.

Ryzen 7 3800, 32gb memory, SSD, Nvidia 3060