Please note that to get this data for your website or webapp you will need to update the JavaScript snippet. Go to App Settings > Installation to copy the new JavaScript snippet.
Element Timing lets you track how fast, or slow, certain elements render on your website. You can track both image and text elements.
For example, you can use this to track the render time of the hero image in your blog posts, or the actual time it takes for the user to see the first paragraph of text.
In some cases these metrics are a better indicator of the real time your users will wait before reading an article or seeing the product pricing page than other metrics such as page load time, first paint time, etc.
Experience will now collect Element Timing information and display it so all you need to do is mark which elements on a page you want to track. You can read the docs on how to do that.