As per the title it takes a long time before my first slide show image loads.
Is there a way to shorten this time?
You are using the ORIGINAL image sizes in the source galleries, where you have collected your photos from. Some of your images are about 2 MB in file size, which is why it takes such a long time for them to be loaded.
On top of that - you are also using one of the images as the BACKGROUND IMAGE for your homepage. So there is a lots of content loading on the homepage.
How to solve this issue?
In the source gallery, where you have collected your images from - please open the GALLERY SETTINGS and change the MAXIMUM DISPLAY SIZE to something like X4 or X5.
This will then allow our system to display your images optimised for web - instead of loading the original versions, especially on larger screens.
Thanks 'tomnovy' that helped a lot.
BTW...I couldn't find the background image you referenced.