I actually noticed at least with nostr:npub1yzvxlwp7wawed5vgefwfmugvumtp8c8t0etk3g8sky4n0ndvyxesnxrf8q -- that uses quite a lot of browser memory -- that Brave was MUCH slower than Chrome. I think Chrome does some magic memory management stuff that they aren't sharing with Chromium.

I was a long-time Brave user, but, really, if they are trying to pump altcoins and other nonsense, can you really trust them?