Oh sorry, I thought this was a ChurcHope forum. ChurcHope is the theme. http://themeforest.net/item/churchope-responsive-wordpress-theme/2708562 Thanks!
The slideshow loading time depends on a content you use in a slideshow. Once all the media (images, audios, videos) is loaded, the slideshow will appear. Also try to remove the frame on the top left corner and check if the loading is faster