Yeah, I remember reading that people were getting better results than I was. Not sure really what's the issue. I am doing some IP translation to have kind of an alias subnet for my home network when going through the VPN. So maybe that's the issue. I did note that the CPU was getting hit hard when I was running iperf, so I've assumed that my bottleneck is there.

I think I was hitting 60+ Mbps though, so it wasn't all bad. However my home connection is 1000/100, so going above 100+ isn't going to mean much. Which is why I've been too cheap to invest in a Pi 4; not too great of an improvement for 55+ EUR investment.