Engine startup - stop loading entire content

Hello.
I want to store my content folder on an S3. I mounted S3 as a drive and I symlinked the content folder to it.
When I startup the engine, it scans and downloads the entire content from the drive, resulting in a very long loading time.
My goal is to reduce storage space on the users’ machines.
Is there a way to not load all the content on startup, but rather on demand/after the editor starts up?