Comment by shadowpho

Same here. With openvpn my somewhat modern cpu takes out a whole core @100% at like 200 megabits/s.

With WireGuard I instead max out the internet bandwidth (400 megabits/s) with like 20% cpu usage if that.

I really don’t understand why. We have AES acceleration. AES-NI can easily do more bps… why is openvpn so slow?