Can't get OpenVPN connection optimized to TorGuard service

I will first say that I have searched a ton here and generally on the web. I'm trying out Torguard VPN service and when I set it up on my router it destroys the throughput. From my reading here...folks are saying that the RT-AC66U should be able to do 15-20Mbps through VPN. The best I have seen with a LOT of messing around with MTU numbers and MSSFIX is around 9Mbps. My internet connection is typically between 20Mbps 'ish and 30Mbps 'ish depending on time of day. I have comcast and don't get...

Can't get OpenVPN connection optimized to TorGuard service