Building High-Performance Web Applications in 2024

Performance is crucial for modern web applications. Users expect fast, responsive experiences across all devices. Here's how to build high-performance web apps in 2024.

**Core Web Vitals**
Focus on Google's Core Web Vitals: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).

**Modern JavaScript Frameworks**
Choose frameworks wisely:
- **React 18**: Concurrent features and automatic batching
- **Vue 3**: Composition API and improved performance
- **Svelte**: Compile-time optimizations
- **Next.js**: Built-in optimizations and SSR

**Performance Optimization Strategies**

1. **Code Splitting**: Load only necessary code for each route
2. **Tree Shaking**: Remove unused code from bundles
3. **Preloading**: Anticipate user actions and preload resources
4. **Service Workers**: Cache strategies for offline functionality

**Database Optimization**
- Use connection pooling
- Implement proper indexing
- Consider read replicas for scaling
- Cache frequently accessed data

**Monitoring and Analytics**
Implement comprehensive monitoring:
- Real User Monitoring (RUM)
- Synthetic testing
- Performance budgets
- Continuous integration checks

**Emerging Technologies**
- WebAssembly for compute-intensive tasks
- HTTP/3 for improved network performance
- Edge computing for reduced latency

Building performant web applications requires a holistic approach combining smart architecture decisions, optimization techniques, and continuous monitoring.