I’ve used both and much prefer Proton for sailing the seas. Connecting through France (highest speed + p2p) with port forwarding is the best torrent speed I’ve had on a VPN. The only slight annoyance is it switching the forwarded port every time it reconnects, but I run it 24/7 anyway.
Just skip the “official” client and run it through gluetun. It’s a much better experience.