I wrote help here is their response:
Thank you for contacting WalletHub Help.
We check for updates but unfortunately this doesn't mean real-time. It is possible the change happened after we checked.
With that said, every day around 3:00 AM EST, we request an update from TransUnion, and if there's a change, the score will get recalculated. On the next day, the new details would show up on your WalletHub account.
Hope this helps