Also see the endless discussions on how to deliver 100 Mbit/s for single connections on OpenVPN. It is absolutely insane, you have to spend many hundreds of dollars on hardware to have a fighting chance. And even if you get hardware acceleration that doesn't help nearly as much as you'd expect. And aside from cost the power consumption required for such hardware is very prohibitive for most.
Meanwhile my phone (first gen. Pixel (so three generations behind)), over wifi, gets at least 60 mbit/s over wireguard to a weak home router and then out to internet.