[huntaub]

Yes, definitely. S3 has a time to first byte of 50-150ms (depending on how lucky you are). If you're serving from memory that goes to ~0, and if you're serving from disk, that goes to 0.2-1ms.

It will depend on your needs though, since some use cases won't want to trade off the scalability of S3's ability to serve arbitrary amounts of throughput.

[manquer]

In that case you run the proxy service load balanced to get desired throughput or run a sidecar/process in each compute instance where data is needed .

You are limited anyway by the network capacity of the instance you are fetching the data from .