Web Performance

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Prevent disruptive UI jank and improve Core Web Vitals. Discover how to eliminate Cumulative Layout Shift (CLS) in React and Next.js through aspect-ratio reservations, font fallback metrics, and dynamic slot stabilization.

ScanWise TeamOct 21, 2026

Web Performance11 min read

Image CDN & Modern Responsive Formats (AVIF vs WebP) in Next.js

Achieve sub-second LCP by pairing next/image with AVIF, WebP, responsive device sizes, and priority preloading. Eliminate layout shift while slashing image payload by up to 60%.

ScanWise TeamOct 21, 2026

Web Performance

Eliminating Cumulative Layout Shift (CLS) in Dynamic React Frameworks

Image CDN & Modern Responsive Formats (AVIF vs WebP) in Next.js