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 implementation
const 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

  1. Measure First: Always establish baseline metrics
  2. Prioritize Impact: Focus on changes with highest performance impact
  3. User-Centric Approach: Optimize for real user experiences
  4. 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.