Rebuilt the product listing page for a multi-vendor marketplace using React + AntD.
🚫 Old setup: img tags with lazy loading on every product (including above-the-fold)
✅ Fix:

• "Eager-load first 6 images (above-the-fold)"
• **"Switch remaining to loading="lazy""
• "Used IntersectionObserver for smooth fade-ins" 📉 Largest Contentful Paint dropped by 230ms (Chrome DevTools audit) *Code Insight:

<img src={product.image} loading={index < 6 ? "eager" : "lazy"} alt={product.name} /> 

Small changes, big wins.

#reactjs #fronted #webperformance #ux