Nostr.land optimizes your relay data connection only.
To optimize media I’d need to be able to modify the note content.
Currently Damus allows this but this won’t work with Notedeck, I guess nostr:npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s could do something that allows nostrscript modules for this.