You should be able to add a .onion relay.
I havent dont performance testing, and tor is notorious for being under attack perpetually.
Lmk what you find 🙏
Discussion
I was just curious. Where does one find .onion relays anyway? 😅
Does Damus have one for example?
Great question. Check the damus github for the tor issue, nostr:npub1jutptdc2m8kgjmudtws095qk2tcale0eemvp4j2xnjnl4nh6669slrf04x profile, and maybe nostr.watch