Thanks for your post I am sorry you are experiencing some slow speeds, I can I ask what speeds you are getting on a wired connection as I can see all of your devices that are connected are wireless. Also is your hub Hub out in the open, clear from obstacles and away from other electrical equipment? (ie baby monitors and cordless phones)
Speed it turns out was more of a device issues rather than your service, speed is always above 80mb/s afaik.
The ping issue remains however, anytime the total bandwith usage goes over say 30mb/s my latency goes up a lot, the more bandwith that is being used the higher the ping.
I've tested geforce now, normal 15-20ms ping in it's networking test, then with a 7MB/s download in the background, 400ms ping, 25% packet loss. Download stops, ping back to 15-20ms no packet loss. This behavior seems to be constant in any application and/or game.
Yes the hub is in the open with nothing else electrical even remotely close to it.