What is causing the regular 10 second oscillation of my WIFI speeds (internally inside my network)?

I have been trying to get the optimal setup for wireless VR and as a result found this issue with my network setup. For some odd reason I get this EXACT 10 second oscillation where the speed jumps up and then slowly ramps down and then jumps back up again. I've included an image of openspeedtest testing between 2 devices in my network. I also included an image of the network graph in resource monitor during this test. I have tried isolating every single piece of hardware in my network (this is about internal network speed, not internet). I get the same issue in varying degrees between all devi

Question by user2020820 on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.