RobMarsh

Plugin Output Cache can be used by other plugins to cache portions of their output for efficiency. By itself it does nothing but other plugins (like my own Similar Posts, Recent Posts, Recent Comments, and Random Posts) can be adapted to take advantage of its cache whenever available.
<h3>Version History</h3>
<ul>
<li>4.0.8
<ul>
<li>fix for utf8 chars for earlier versions of MySQL</li>
</ul>
</li>
<li>4.0.7
<ul>
<li>fix for utf8 chars</li>
</ul>
</li>
<li>4.0.6
<ul>
<li>fixed bug with unescaped quotes</li>
<li>fixed warning in error log</li>
</ul>
</li>
<li>4.0.5
<ul>
<li>some speed improvements</li>
<li>changes to work with automatic update</li>
<li>fixed problem with some installations of PHP</li>
</ul>
</li>
<li>4.0.0
<ul>
<li>improved ease of use and efficiency</li>
</ul>
</li>
</ul>

Plugin Output Cache

Plugin Output Cache can be used by other plugins to cache portions of their output for efficiency.

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.

Plugin Output Cache vs Debloat – Remove Unused CSS, Optimize JS