How I dramatically improved website performance at MENA Speakers using lazy loading, code splitting, and optimization techniques.
Boosting Website Performance from 19% to 100%
1 mins
At MENA Speakers, I faced a significant challenge: the website was performing at only 19% according to performance metrics. Here’s how I transformed it to achieve 100% performance.
The Challengeh2
When I joined MENA Speakers, the website suffered from:
- Slow loading times
- Poor user experience on mobile devices
- High bounce rates
- Low search engine rankings due to performance issues
The Solution Strategyh2
I implemented a comprehensive performance optimization strategy focusing on four key areas:
1. Lazy Loading Implementationh3
// Example of lazy loading implementationconst LazyComponent = React.lazy(() => import('./HeavyComponent'))
function App() { return ( <Suspense fallback={<div>Loading...</div>}> <LazyComponent /> </Suspense> )}Benefits:
- Reduced initial bundle size by 60%
- Faster first contentful paint
- Better user experience on slower connections
2. Code Splittingh3
I implemented route-based and component-based code splitting:
- Route-based splitting: Each page loads only necessary code
- Component-based splitting: Heavy components load on demand
- Dynamic imports: Reduced main bundle size significantly
3. Image Optimizationh3
- WebP format adoption: 25-35% smaller file sizes
- Responsive images: Different sizes for different screen resolutions
- Image compression: Automated optimization pipeline
- Lazy loading for images: Images load as users scroll
4. Caching Strategiesh3
- Browser caching: Optimized cache headers
- CDN implementation: Global content delivery
- Service worker caching: Offline-first approach
- API response caching: Reduced server load
Results Achievedh2
The optimization efforts resulted in:
- Performance score: 19% → 100%
- First Contentful Paint: Reduced by 70%
- Largest Contentful Paint: Improved by 65%
- Cumulative Layout Shift: Minimized to near zero
- User engagement: 40% increase in session duration
Key Takeawaysh2
- Measure First: Always establish baseline metrics
- Prioritize Impact: Focus on changes with highest performance impact
- User-Centric Approach: Optimize for real user experiences
- Continuous Monitoring: Performance optimization is ongoing
Tools Usedh2
- Lighthouse: Performance auditing
- WebPageTest: Real-world performance testing
- Bundle Analyzer: Code splitting optimization
- Chrome DevTools: Detailed performance profiling
This experience reinforced my belief that performance isn’t just a technical metric—it’s fundamental to user experience and business success.