I’m on a 250/250 fibre connection. I use OpenVPN off and on to connect to a VPN service in another Country. At best I get something like 30/45 when testing with Speedtest. I’m using a .ovpn file from the VPN provider that I activate via a startup script. I’ll include the file without the certificates. I would appreciate any input that could help me get better performance. I have tried upgrading Turris to 5.0x a while ago and I couldn’t get the VPN to connect at all. So I’m a little hesitant to the upgrade at the moment!
Thanks 
client
dev tun
remote dk.access.vpnbroker.net 1194 udp
remote dk.access.vpnbroker.net 443 tcp
resolv-retry infinite
nobind
persist-key
persist-tun
mute-replay-warnings
auth-user-pass
key-direction 1
cipher AES-256-CBC
verb 3
comp-lzo no