Is it possible to force render of certain elements before showing them?

I'm getting some stuttering and Adobe Scout reports that Air is "rendering dirty regions".

I would like to avoid that to get fluid animations, even if it means making the user wait for a few frames before displaying the content. Problem is that Air only does this process when the elements are being shown. I've tried putting the elements on stage, but it seems if the elements are not visible by the user the rendering does not occur.

So, is there a way to force this render without actually showing the content to the user?
Is there any other way to solve this issue?