Ivhave been playing around with the MTU size of the wireguard (always making sure to restart the wireguard interface after saving the changes). Currently i am at 1300. That fized the hang up that would happen when the bandwidth test would change over from the download part to the upload part of the text.
I also came across this thread. Anyone know if that would help?
The DL/UL in NJ is back to the advertised speed FWIW.