Low PageSpeed Insights score - how to improve CLS?
Briefly

Setting width and height attributes on images is critical, as it allows the browser to allocate space for them before they load. This helps prevent layout shifts, which can significantly impact user experience.
Even though your website is responsive, using explicit width and height attributes won't break the layout. CSS will still handle image resizing effectively, ensuring a responsive and seamless experience across devices.
Addressing layout shifts by specifying image dimensions in the code is about improving UX, even if it doesn't directly boost loading speed. It's about how users perceive the website while it loads.
By following PageSpeed's recommendations, you can improve your CLS score, enhancing user experience and reducing frustration caused by layout shifts as users navigate your site.
Read at SitePoint Forums | Web Development & Design Community
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