SPPB Slideshow Addon Kills Google Page Speed Insight Score
kweb
Hi there, after trying to improve some of my websites build with SPPB and using the SP Slideshow Addon I have to say that its not possible to get a good Page Speed insight Score when using the Slideshow addon. The way the addon is loading it is causing a huge penalty on the Cumulative Layout Shift metric.
When the slider renders, the whole page moves down to give room for the slider. As far as Google is concerned, this is a terrible experience for the user, so you get really horrible scores for Cumulative Layout Shift (CLS).
For example: On my own website Im getting a 48 scroe on mobile and 81 score on desktop with slideshow addon activated. When deactivating it im getting 84 on mobile and 97 on desktop.
You should really improve this. With your addon enabled your users will not have the chance to fit the Google Web Vitals which are important for SEO.
An idea is to add some CSS that will preserve the space for the slider as the page loads, perhaps using the image on the first frame as a background image until the slider loads.
kweb
Ariba
Accepted AnswerHello
Thank you for sharing your query. As you know in SPPB, there are features like caching system, image optimization, lazy loading, etc. that can help in making fast web pages.
For images from several addons, for example, Slideshow (as you mentioned) - by default, it uses built-in native lazy loading.
Have you tried to enable lazy loading from the Global Configuration. In the global settings of SP Page Builder, you can turn on the Lazy Load button. Can you check if that helps?
Also, there are some more steps that you can try, you can check our blog below:
https://www.joomshaper.com/blog/ultimate-guide-to-high-google-pagespeed-score-for-websites-on-joomla
Can you kindly see if the solutions here help you to get a good score?
