Nope, you can resize images and fetch the smaller size
Discussion
Itโs not built into nostr protocol. New NIP? ๐ถ๐พ๐ค
That would be up to you wizards. ๐ง
This should already be a thing. It would be pretty dumb to pull a 1mb image sized at 32x32. I suppose you could add kb limit but thatโs more difficulty for user to get it just under the limit