I've also been experiencing these issues, it's like a frame or two of lost input and the like, I see it very frequently in Puppet's Bunker compared to others, I've tested other 8 mans and outside in areas such as housing districts and more. I also ran through the troubleshooting suggested, and have also reset my home gateway, done a couple reboots and other driver checks, so far the issues is of intermittent persistence.

I am playing on Gilgamesh, Aether datacenter as well. ATT is my service provider, so I can't help but wonder if there's something datacenter specific with some of the 24 man/high yield instanced content. I have a fairly well built PC that normally has 90 frames but the random loss of input/frames is a little jarring to be sure.