Great answer Mike

Here is another post in the same thread with some comps from another provider across all the platforms.

The AR300 performs the best, but still not in line with your PC.

To get the performance I think you want you really need to step up to something like this.

PC Engines apu2 system boards which will run you closer to low $200 US or build a Small Form Factor PC. You will also need to build your own firmware, though there is some support for the APU2 in dev. I recall a thread on one of the high end consumer boxes (no clue which) that reported VPN at better than 30 .

If you do not need wireless and not married to OpenWrt\LEDE there is this new toy: Blog No real feedback on it yet that I can find.

This is in the PIA forum: https://www.privateinternetaccess.com/forum/discussion/2845/openvpn-router-speeds