How can you optimize loading performance when aggregating content from multiple websites into a single course module?

When content comes from different websites, the page can slow down because it’s trying to load everything at once. To avoid that, I usually save or cache the content on our server first, so the course loads from one place instead of calling many websites every time. I also make sure images are smaller, code is clean, and only the necessary files are loaded.

For sections that aren’t needed immediately, I use lazy-loading so those sections load only when someone scrolls to them. The module loads the core content first, and the rest comes in only when the user reaches it. Using asynchronous requests keeps the UI responsive, and batching multiple API responses into one payload reduces load time even more. As a web developer, these simple steps make the module feel much faster and smoother, even if the content originally came from several different websites.