The issue we are looking to solve is that when we rebuild the Vector Tile Cache (either through the item settings or through the REST API), it takes 10 minutes for the updated cache to be displayed to users. What we found is that this is due to the Cache-Control max-age setting of 600 on the tile's pbf Response Header.
We would like to see either functionality that allows the user to define the refresh interval in the item settings, similar to the CDN settings on feature services, this setting being exposed in the service's JSON, or the ability to for a rebuild of the cache programmatically through the REST API.