a3 Lazy Load is inspired by and powered by the ressio [Lazy-Load-xt JavaScript].

a3 Lazy Load is the most fully featured, incredibly easy to set up lazy load plugin for WordPress. Use the plugins admin settings to easily define what elements are lazy loaded and when they become visible in the users browser. As the user scrolls down the page the next lot of elements you have applied lazy Load to are only loaded as they become visible in the view port.