OpenGG

Simple and small lightbox clone, Modded from Joel Vardy’s lightbox, more info at http://blog.ilooker.tk/
Download and install, that’s all you need to do. And when you post articles with images, this plugin (the js script actually) will automatically lightbox those unlinked images (would not affect those images with links).
For example, I posted an article, with two image unlinked to anything (let’s call them image1 and image2), one image linked to another webpage (called image3). Then when someone click on these three images, image1 and image2 will be lightboxed but image3 will not.
Demos: 
<a href="https://jquery-littlebox-for-wp.googlecode.com/svn/trunk/demo.htm" title="Demo on Googlecode" rel="nofollow ugc">Demo on Googlecode</a> 
<a href="http://blog.ilooker.tk/" title="My blog" rel="nofollow ugc">My blog</a>
<h3>Issue list</h3>
<ul>
<li>Large image overflowing issue;</li>
<li>Iframes and flash objects unsupported yet;</li>
<li>Image groups unsupported yet (one click one image, no prev/next);</li>
<li>Not so customizable for users yet;</li>
<li>UI design improving needed.</li>
</ul>

jQuery Littlebox for WP

Simple and small lightbox clone, Modded from Joel Vardy's lightbox, more info at http://blog.ilooker.tk/

Aleksandr Guidrevitch

WP Meteor offers an original way to further optimize your website speed. 
With this plugin you can increase your PageSpeed score by up to 5x. 
The plugin is 100% free, it is compatible and works well with most popular caching plugins like: 
* Autoptimize 
* WP Rocket 
* WP Total Cache 
* WP Super Cache 
* Phastpress 
* LiteSpeed 
* Hummingbird 
* WP Fastest Cache 
* SiteGround Optimizer
It also works well with website builders like Elementor or with image optimizers like ShortPixel.
The few known incompatibilities are listed in the FAQ.
<h4>BENEFITS</h4>
WP Meteor can improve your <a href="https://pagespeed.web.dev/" rel="nofollow ugc">Pagespeed</a> results and the actual loading time of your website by up to 5x! You do not have to take our word for it, it only takes 2 minutes to install the plugin and <a href="https://test.fastpixel.io/" rel="nofollow ugc">test how it improves</a> your website speed. 
And since the plugin is designed to leave no traces on your hard drive or database when deactivated and removed, there is no risk for you.
<h4>HOW IT WORKS</h4>
If the user does not interact with the page immediately, WP Meteor defers loading and firing scripts until the page is rendered, which increases the pagespeed metric, on average, by 2-5x.
This delay in loading scripts greatly improves perceived load times for your visitors. It also significantly improves the following important SEO metrics:
<ul>
<li><a href="https://pagespeed.web.dev/" rel="nofollow ugc">Page Speed</a></li>
<li><a href="https://web.dev/lcp/" rel="nofollow ugc">Largest Contentful Paint (LCP)</a></li>
<li><a href="https://web.dev/tti/" rel="nofollow ugc">Time To Interactive (TTI)</a></li>
<li><a href="https://web.dev/tbt/" rel="nofollow ugc">Total Blocking Time (TBT)</a></li>
</ul>
<h3>FURTHER ACCELERATE YOUR WEBSITE</h3>
If you want to optimize your website’s speed to the fullest extent automatically while ensuring that all Core Web Vitals are taken care of, we recommend trying <a href="https://wordpress.org/plugins/fastpixel-website-accelerator/" rel="ugc">FastPixel.io</a> for free. 
The FastPixel project is a collaboration between the creator of WP Meteor and ShortPixel, and it addresses, with just a few clicks, <a href="https://fastpixel.io/blog/easy-way-to-improve-core-web-vitals-on-wordpress/?utm_source=wpmeteor-readme#common-issues-affecting-core-web-vitals" rel="nofollow ugc">all the common issues</a> that affect Core Web Vitals.

WP Meteor Website Speed Optimization Addon

Let me cut to the chase. WP Meteror is an awesome plugin that actually worked for me and rocketed my score up according to Google Page Speed metrics.
Furthermore, It is fully compatible with Autoptimize and WP Super Cache, two great plugins which I persistently consider among “must-haves.” 
Being always frustrated with GPS scores, I was always looking for a way to minimize the damn “main thread work,” get rid of “render-blocking resources” and improve LCP, TTI and TBT (Ironically, Google still regards its own reCAPTCHA, Tag Manager, etc. as render-blocking or unused JavaScript!)
The optimization of JS files and applying Defer attribute to scripts, among many others, just led to a slight improvement in my score, no way comparable with that of WP Meteor.
Last but not least, using WP Meteor had some downsides on my website as Alex had clearly explained. But there is an inbuilt exclusion session which helped me exclude troublesome scripts easily.
In a nutshell, this plugin kills it on Page Speed and deserves 10 out of 5 stars!


 



Godzilla vs. Kong: The winner is… WP Meteor!

Amazing

2x-5x improvement in your Page Speed score. A completely new way of optimizing your page speed.

jQuery Littlebox for WP vs WP Meteor Website Speed Optimization Addon