Setting the file. One moment.
Subchapter 7.42
references/support-topics/next-image-lcp-preload-sizes.mdMarkdown1 KBView on GitHub
For poor LCP, identify whether the LCP element is an image before touching unrelated JavaScript. Hero images need correct sizing, priority behavior, and source-cache hygiene.
Inspect above-the-fold media for next/image, fill without sizes, deprecated priority on Next.js 16, missing preload or fetchPriority, oversized dimensions, and remote-image TTL/source behavior.
Do not preload multiple possible LCP images or route tiny icons/SVG UI assets through image optimization. Do not change quality or TTL without checking source-update semantics.
Name the LCP value, image element or component, current props/config, and the exact line to change.