This add-on adds 'lazy loading images' to your forum with minimal impact.
This will have a positive effect on your PageSpeed score, especially for the mobile test.
Simply check the difference with and without this add-on.
Loading image lazy means your browser will only download images when...
Actually there is this addon available on the Resource Manager. Thanks @Xon. However, it doesn't work with important addons like Media Gallery.
it would be great have this feature in the core.
Lazy Loading
Definition:
Lazy loading is a technique for loading web content when it’s needed rather...