User interaction and responsiveness of the UI is the most important task. Is there anyway to tell ST to not doing anything, except really necessary things, if the user starts touching something (a list, or a simple button) and continue on touchend? I think of things like fetching data, geopositioning tasks, map updates, or DelayedTasks aso.
ST should pause are all unnecessary things between user interaction. Is there any way to configure such behavior?
JavaScript is a synchronous language and there is no important task that can take priority over another. Now there are things that area async like an Ajax loading or Geolocation but this is because it's not 100% JavaScript (Ajax is an Xhr request, Geolocation is a device API).