Update interval

Hi

Is there a way to control update intervals making them more or less frequent?

  1. Published app is linked to a google sheet, the updates are done automatically upon edit or when using the app but can the intervals change and can we control that?
  2. If the app is not linked to a google sheet from the app (is that possible) but linked via APIs, can we control the number of updates? Eg a row or edit takes place of the app or sheet however the data exchange via the API is set to be every 15 minutes

Thanks