As a Roblox developer, it is currently too hard to continually test games that are very asset-heavy. Because assets are in the cloud, they have to be reloaded every test. When doing rapid testing & development, this can really drag down development speed.
If Roblox is able to address this issue, it would improve the development experience because it would allow everyone to not have to wait for assets to redownload every time a place is being tested.
My suggestion is to add some sort of asset caching behavior for Studio, perhaps in a location and limit that can be set by developers. It would be great to have snappy loading times during development.