"The main difference is that each event is a separate package in WebSockets. The payloads are quite small. With HTTP, the entire filter is returned at once in a massive string." -vitorpamplona

Maybe nostr will be faster in the future nostr:note14jpfhum0tf23aefeh6ydqdym4u04xpwknz9e3feem5spfplkhnlqh84fg4