You can try using Vanilla-LazyLoad LazyLoad is a lightweight (2.4 kB)
and flexible script that speeds up your web application by deferring the
loading of your below-the-fold images, animated SVGs, videos and iframes
to when they will enter the viewport. It's written in plain "vanilla"
JavaScript, it leverages the IntersectionObserver API, it supports
responsive images, it optimizes your website for slower connections, and
can enable native lazy loading. See all features for more. You can
registe...