Prioritize an image fetching to improve your LCP

With fetchpriority="high|low|auto" you can handle how browsers will prioritize fetching on some resources on your webpage. This can significantly improve your LCP ( Largest Contentful Paint) insights. For example, you can set fetchpriority="high" on an image that is above-the-fold of your webpage. 

This way the browser knows that this image must be loaded as soon as possible and before the resources set as fetchpriority="low". The user will probably see this image quicker and the LCP will be reduced. Remember that Google recommends the LCP to be lower than 2.5 seconds.