Oh so sorry I dont know where I was with my head:thinking: To many drinks last night 
Still its weird with youre system it should run perfect. I run with an i8700 and an Rtx2060 no issues.
Have you tried to change some of the the settings in the virtual link settings on youre glasses?
I had to put them on medium and 72hrz for good result. Maybe something you can change there?
I can see that I am connected at 866Mb at the router. Whats youre connection speed?
Sometimes my Quest for no reason took the 2,4 ghz network so switched that off.