Spent last 3 days trying to get OpenVPN running on Pi. Numbers: ProtonVPN's setup looked promising but throughput drops by 60 percent once I connect. NordVPN had lower latency but I got connection drops every 20 mins. CyberGhost? So many config errors, it's like chasing ghosts. Protocols: OpenVPN over UDP is fastest but less stable. TCP? More reliable but cuts speed by 25 percent. Still no luck. If anyone's cracked a solid setup or has real benchmarks I'd love to see them. I'm about ready to throw this Pi out the window.