WordPress 5.4 May Include Default Image Lazy-Loading

→ Lazy-loading images is one well-known win for site speed, and at present if you want to implement it in WordPress you have to choose among one of many subtly different plugin options. It now looks like WordPress 5.4, due out in March, may include default lazy-loading for all images.

Source: WordPress 5.4 May Include Default Image Lazy-Loading