Blockstream Green Question: I'm teaching Intro to Bitcoin as an elective to 5 kids at my middle school.

We've set up and recovered Blockstream Green wallets on their iPads with both Mainnet and Testnet single sig wallets.

We've successfully moved both real and fake sats around, BUT the app takes FOREVER to load on the iPads.

We have a FAT gigabit fiber connection; averages 20% utilization

I've opened the firewall out to blockstream.com and blockstream.info.

I've removed any caching for those sites.

Does anyone know how the Green Wallet "talks" to Blockstream? Is there another domain or port I need to open up outbound etc.?

Thanks for any insights and have a great day!