Lazy loading and dynamic sizes. Using the `loading='lazy'` attribute, you ensure that Nuxt doesn't load and render the image if it's not within view. It defers loading images when landing on the site, improving loading times. Using the `sizes` attribute, you ensure that images are correctly sized depending on the viewport. Nuxt Image renders out an `img` tag with the appropriate attributes. It reduces loading times on mobile since it gets smaller images from the servers.