This is an old revision of the document!

PFSense - OpenVPN

Potential Advanced Settings you can try:

USE AES-128-GCM/AES-256-GCM!!!

auth-retry nointeract;
persist-key;
remote-cert-tls server;
reneg-sec 0;
auth-nocache;
fast-io;
sndbuf 524288;
rcvbuf 524288;