Plugin is very resource intensive

I’d like to know as well! ??

Can you provide more details regarding how you’re arriving at these numbers so that I can take a closer look?

The client-side output is only ~10kb when minified. Unfortunately, the WordPress plugin directory does not allow client-side scripts in plugins to be minified, so using a minification plugin may help to improve the loading time of this and other client-side scripts on your site.

That being said, server configurations can vary wildly and can affect a site’s performance. Network speed and latency can also greatly affect how quickly things load. If you can provide a link to a page that exhibits the issues your experiencing, I’d be glad to a take a closer look.

Thanks for replying.

It all came about from looking into why our page loading speed was slow.

I ran some pingdom tests and found that the initial wait time was super slow.

That led me to analyse just what WordPress was doing in its initialisation, so I fired up P3 (Plugin Performance Profiler).

It identified 4 plugins that were eating up a lot of resources on page loads, Simple Lightbox being one of them.

So I set up a blank 3.5.1 test server and ran the tests with and without the plugin to see the performance difference.

It was quite noticeable.

Here are the images from the test:

1. Vanilla 3.5.1 site with Genesis, WordFence and XCloner
https://limecanvas.net/test/wp351/speed-test/wp-351-genesis.png

2. Same site as 1 with Simple Lightbox added
https://limecanvas.net/test/wp351/speed-test/wp-351-genesis-simple-lightbox.png

3. Out website before tweaking
https://limecanvas.net/test/wp351/speed-test/lime-canvas-before-tweaks.jpg

4. Running P3 on our site
https://limecanvas.net/test/wp351/speed-test/plugin-performance-test-before.png
Simple Lightbox plugin takes up 36.4% of the resources

5. Running P3 again after I removed GOTMLS plugin and optimised JetPack, WidgetKit and Simple Lightbox
https://limecanvas.net/test/wp351/speed-test/plugin-performance-test-after.png

6. Removing Simple Lightbox plugin and running pindom again
https://limecanvas.net/test/wp351/speed-test/lime-canvas-after-tweaks.png

That’s all without any server optimisation.

Hope that helps.

Wil.

Thanks for the additional info.

Strangely, it doesn’t appear that SLB is being loaded on any of those Pingdom tests you posted screenshots of.

Were you using any caching plugins during those tests (minification, file concatenation, etc.)?

Same problem.
Only showing simple light box on posts, group, animations and loop.
load time .48 seconds which is 69% of load time for 30 plugins.

L7world.com