Works As Described, But Too Inflexible

Two suggestions:

1.) The ability to exclude specific images and/or image classes (the header logo, above-the-fold images, etc): From a UX perspective the plugin makes above-the-fold page rendering jarring.

2.) An option to fire the loading of the images sooner than onload, ideally at DOMContentLoaded: The irony here being that while the plugin does what it claims to do, a page that takes 3, 4, 5 or more seconds to reach onload actually feels even slower with the plugin enabled.

Be well,
AJ