Well, sir.
You should do this in a client instead of separating the function into different program.
Just:
- Store whatever the client has received / viewed and make it as a cache for later-view
And that's how you trim bandwidth usage....
Discussion
Afraid of local database size?
Compress the strings / JSONs with gzip.
Done.
Even local relay works,
The consenquence still applies.
Those external relays still receive your REQ and continues to proceeds.