Yeah, I don't use the geographically closest, just the fastest ... you can tell the speed on the chart. For me Toronto or US East work best.
My base speed to my isp is 56mbits and I often hit 53mbs to New York.
Not quite full saturation of my connection, but given the overhead of the VPN I thought it was great. On my N66u, using my networkmanager (Arch Linux) to set up the openvpn I get full saturation, mind you I have a very fast rig, intel nic etc ....
I am impressed with your R7000... AC56U with stock clocks (and AC68 is pretty much the same) will never be able to achieve such VPN speeds - assuming that the VPN client runs on the router..
I need to resolve a couple of problems with my ISP (so I can get the speed I am paying for), and I have an open ticket with PIA - I should be getting close to your speeds with VPN running on a PC.