Placeholder/Delayed loading?

I’m using the free version of Smart Slider 3 and want to say that I’m enormously impressed with its capabilities and ease of use. I easily got it going on my site.

My problem: I have a page that has ~10 sliders on it (for example, cabin descriptions at Loch Lyme Lodge – https://newer.lochlymelodge.com/?page_id=210) It takes a long time to load the page (maybe even 15 seconds… Yikes!)

I could do a lot of work optimizing image size, etc. but that still doesn’t address the issue, which is:

The viewers don’t want to wait for all those images to download that’ll never be seen. Most of the time our viewers will come, review one or two cabins that seem attractive and click Book Now.

My question: What are my options with Smart Slider? Can it:

– display placeholders (I’ve seen the note from earlier this week)
– delay loading of (small) images
– only load images that are visible on-page (if they scroll, then load more images)
– only load images when the viewer hovers or clicks an image
– … something else

As I said, I’m using the free version now, but if the $25 PRO version could do this nicely I’d be sold. Many thanks!