1. It’s hard to say where the space is coming from without seeing the source code. Can you send us the link to the page?
2. I’m really sure this is not up to the theme, it sounds like a problem with a plugin. Have you already tried to deactivate your plugins and tried it again?
3. We checked it and at the moment there is no option to stop the slider, and that’s really stupid! We will make an update to fix that as soon as possible.