Lazy Load Images

We have a client that has a carousel of multiple slideshows with multiple images per slideshow, and the resulting page-load (with full-sized images) is approaching a gigabyte. We would love an option to only load the image when the slide displays, perhaps using a method such as the one displayed here:

https://www.feedthebot.com/pagespeed/defer-images.html

This would be as simple (I am guessing, I have yet to implement it into our copy of the plugin) as setting the image-src if the option is selected, and on slide load, applying this to the source prior to switching the slide (and setting the slide change to occur on image load).

https://www.ads-software.com/plugins/slideshow-jquery-image-gallery/