I think the main issue with RPi's is that they need to be properly cooled to prevent them from throttling down clockspeed. If they're not overheating, you should get the best performance.
|15d|07ozo |11t|03gv|11b|03bs|08.|11n|03et|08:|082222|08(|07ssh|08)/|082323(|07telnet|08) |08(|07fsx|08) |0721:1/238 |08(|07agn|08) |0746:20/115
|08(|07tqw|08) |071337:1/117 |08(|07spn|08) |07700:1/117
--- Mystic BBS v1.12 A48 (Linux/64)
* Origin: The Global Village
ssh://tgvbbs.net:2222 (1337:1/117)