Good reminder: don't lazy load hero or product images.

https://cloudfour.com/thinks/stop-lazy-loading-product-and-hero-images/

It hurts both your UX and your Largest Contentful Paint (LCP) score.

Stop Lazy Loading Product and Hero Images

I see a recurring performance problem on many ecommerce sites—the most important images on the page are being lazy loaded when they shouldn't be. You’re better off not implementing lazy loading at all than implementing it incorrectly.

Cloud Four

If your LCP is still bad, here's good information on finding out why: https://whitep4nth3r.com/blog/your-bad-lcp-score-might-be-a-backend-issue/

It's one of those few-ish performance things that can easily be more back-end than front-end.

Your bad LCP score might be a backend issue

Page Speed Insights and Lighthouse can't evaluate performance across your entire stack of services and apps. You need something more powerful: tracing.

whitep4nth3r.com
@chriscoyier that is a great reminder. Sometimes it’s easy to fall down the optimse all the things route. Thanks!