Does nostr use vastly more bandwith than Twitter? Currently, I'm on a limited mobile subscription, and nostr uses 10-20 times more bandwith.

I use Iris.to. It uses approximately 1GB per 10 min, just browsing.

Is this correct or is it something in the settings?

Sometimes Iris is slow, it says "loading posts" very often.

I have a 100-200 Mbps download/upload connection.

Thanks for any help.