Just got the Asus TUF-AX5400, replacing an Asus RT-AC86U (which I'm now using as a node in Amish). On both the stock firmware and Merlin (Gnuton) the OpenVPN speeds on the AX5400 are much slower than the speeds I was achieving on the AC96U on exactly the same VPN servers. I would normally be able to get speeds of 150mbps+ on many ExpressVPN and Surfshark servers. Now the quickest I'm getting is around 50mbps. Are there any setting I need to change? QoS is off, as is AiProtection and Traffic Analyser.