Very interesting, the reason I haven't tried silent payments yet is exactly what you mentioned, it needs to check every block looking for a payment, I also have my bitcoind pruned so I think that woul...
Blackcat: maybe there is an option like, do not scan blocks <900021 or similair. Just in case the user knows exactly he did not get payments before block xy. But actually it could be a problem, once your first silent payment get pruned and you are to reinstall this application...
💜1