If you would like to enable Lazy Load on Genesis, you may notice that the feature images do not lazy load. Because of the simplicity of Lazy Load, it is quite easy to add this functionality.
Add the following to your functions.php file. And BOOM! you're done!
The later function, wps_lazyload_placeholder_image, will enable you to setup a default image instead of the Lazy Load's default placeholder image, which is 1x1.trans.gif. However, if you are good with the 1x1 gif, then you don't need the second function.