molotow

Defer Media is a plugin for speed up your website and defer not needed medias which out of the screen when page loaded. 
Then, when you scroll down the page, it will load images/videos/iframes automatically or pre-load it even if it it not visible yet (can be adjusted with Appearance Offset parameters).
This plugin will apply the following actions: 
– Defer images (standard [img] tag and also [picture] src sets) 
– Defer background images (if style=”background-image” applied for some block) 
– Defer Videos ([video], [source] tags) 
– Defer Youtube embedded videos (iframe) 
– Defer any Iframes ([iframe] tag)
You can see plugin demo on this page: 
<a href="https://joomcar.net/wp-optimize/a-lot-of-media-page/" rel="nofollow ugc">Defer Media demo</a>

Defer Media

This plugin defer images and videos loading on your site for make it faster

asadkn

A plugin for Advanced Users to Optimize CSS Delivery, Remove Unused CSS, Optimize Javascript Delivery with defer or delay load JS. 
The perfect toolkit for improving your Core Web Vitals and overall website performance.
WARNING: It’s a powerful speed optimization plugin that’s meant for power users who know what they’re doing.
Features:
<ul>
<li>Optimize CSS: Fix Render-Blocking.</li>
<li>Minify and Inline CSS.</li>
<li>Remove Unused CSS (Advanced).</li>
<li>Optimize JS: Fix Render-Blocking with defer.</li>
<li>Delay Load some JS until user interaction.</li>
<li>Adds resource hints for faster Google Fonts.</li>
<li>Built-in optimizations for Elementor (free version).</li>
<li>Built-in optimizations for WPBakery Page Builder. </li>
<li>Compatible with all themes and plugins.</li>
<li>Supports all modern browsers (no IE11 support).</li>
<li>Optimized code benchmarked for performance.</li>
<li>Built-in cache for processing.</li>
<li>Compatible with cache plugins (disable their JS and CSS optimizations).</li>
<li>API and hooks for theme & plugin authors.</li>
</ul>

Debloat – Remove Unused CSS, Optimize JS

Remove Unused CSS, Optimize CSS, Optimize JS and speed up your site.

Defer Media vs Debloat – Remove Unused CSS, Optimize JS