How to speed up page loading with many images and cards?

To speed up the loading of a page with many images and cards, you can use several approaches:

• Lazy loading: load images and content only when they enter the user's viewport. In HTML, you can use the attribute loading="lazy" for images.

• Image optimization: use modern formats (WebP, AVIF), compress images without quality loss, and choose the right size for the device.

• Code splitting and dynamic import: split JavaScript into parts so that not all code is loaded at once.

• Caching: use HTTP caching, service workers for offline access, and faster repeat loads.

• List virtualization: if there are many cards, render only those visible to the user in the DOM, for example, using libraries like react-window or react-virtualized.

• Minification and resource compression: minify CSS and JS, enable gzip or brotli on the server.

Example of lazy loading an image in HTML:

<img src="image.jpg" loading="lazy" alt="Description">

By combining these methods, you can significantly improve load times and page responsiveness.