Only problem: If somebody connect to the page, only the upper part of the site is shown. The part below the Slider is blank and only show, if you scroll the page. Is it possible to change the settings, that stuff below the slider is shown, too.
It’s due to the animation effects that are applied to homepage section. So section gets loaded or displayed on page scroll.
You can also remove this animation effect functionality
Go to Appearance -> Theme Options -> Basic Settings -> Disable Animation -> Check this to disable animation on scroll