Systematic performance engineering for enterprise React apps
A comprehensive performance optimization initiative applied across a large-scale enterprise React application — focusing on bundle size, render performance, and runtime efficiency.
The application had grown organically over several years, resulting in large bundle sizes, unnecessary re-renders, slow initial load times, and poor Lighthouse scores affecting user experience.
Implemented a systematic performance audit and optimization strategy: route-based code splitting, React.memo and useMemo for expensive computations, virtualization for large data lists, and image optimization pipelines.
40% reduction in initial bundle size
Lighthouse performance score improved from 68 to 91
Eliminated redundant re-renders across 12 core components
Reduced Time to Interactive by 2.3 seconds