Room34 on Nostr: fiatjaf how does the 'most zapped 4hr' feed work? and how long does it take to ...

fiatjaf (npub180c…h6w6) how does the 'most zapped 4hr' feed work? and how long does it take to refresh? i'm getting zaps on a post but I'm not seeing it in my 'most zapped 4hr' feed 🤷‍♂️