We’ve been looking into this and have found that limiting the number of relays one is connected to can help. Try picking a couple of relays and then retry Amethyst. I think you will need to uninstall and reinstall to reset the bandwidth counter.

One larger issue for the Nostr community is that joining another client automatically adds relays to your account. Im not sure which clients are doing this but i removed 8 relays from my account yesterday that i had not manually added.