Uber Slow OpenVPN

[whatever]

Hi,

I recently transitioned from pfSense to OPNsense and everything works extremely well - except for OpenVPN. While it does work, it's exteremely slow.

I have WireGuard and IPsec (IKEv2) tunnels running on the same box and both WG and IPsec are blazing fast. I understand that OpenVPN is single-threaded and generally slower than the other two protocols. But I believe I should be getting roughly 300 - 400 Mbps with this box. I'm barely getting 80Mbps. With WG and IPsec, I'm getting close to 900Mbps.

My OpenVPN server has pretty much a "vanilla" configuration. Essentially the same settings in pfSense get me 400Mbps, so I'm inclined to believe I should be getting roughly the same speed woth OPNsense.

I've attached a screenshot of my server config. If anyone has any ideas as to what might be bogging OpenVPN down, I'd appreciate it. If any more info is need, I'm happy to provide it.

I'm running OPNsense 23.1.5_4 on a Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz (4 cores, 4 threads).

Cheers.

[whatever]

I doubt there's anything to glean from my server configuration. So it's more about asking if anyone else has ever encountered this with OpenVPN and what they did to resolve it.

Thanks