Right now a scene is defaulted to 4.3 seconds and you cannot make this less. This makes it difficult to line up to a voiceover if a segment is less than this amount. We should have the ability to make a scene as short as we want even down to 1 second. We may want a fast scene to scene motion.
You can get around this by grabbing a screen shot of the background and placing it in as a object. By doing that, you can bring it done to a 1 second scene.