With the release of Angular 20, developers are witnessing a major leap in performance, DX (Developer Experience), and scalability. Whether you’re building enterprise-grade applications or lightweight SPAs, Angular 20 brings several improvements that help optimize your apps like never before.
In this blog, we’ll explore key features of Angular 20, followed by pro tips to boost performance in real-world Angular projects.
🚀 What’s New in Angular 20?
1. 🔁 Zoned-Out by Default
Angular 20 takes another step toward zone-less change detection. With @angular/core updates, you can now opt-in for signal-based reactivity and manual change detection by default—minimizing unnecessary rendering cycles and improving app speed.
2. 🧠 Angular Signals: Now Stable
With Signals API now stable, developers have a better and fine-grained reactivity model. This is a game changer for performance because it:
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Reduces unnecessary component updates.
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Makes reactive state management predictable.
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Integrates seamlessly with RxJS or can be used standalone.
3. 📦 Smarter Build Optimizations
Angular CLI now offers smarter chunking, tree-shaking, and code-splitting. This means better load times and less overhead. The ng build process also shows detailed diagnostics, helping you fine-tune your bundle.
4. 🖼️ Built-in Image Optimization
Angular 20 supports automatic image compression and lazy loading. No need for external plugins—just use the native <img ngSrc> and you’re good to go!
5. 🧪 Experimental Reactivity with Effects
Similar to Solid.js or Svelte, Angular now supports Effects natively. These allow you to perform side effects when Signals change, leading to smarter and more performant data flows.
⚙️ Performance Boosting Tips (Angular 20)
✅ 1. Use Signals + Computed Values
Move away from @Input() and @Output() where possible. Instead, use:
count = signal(0); double = computed(() => this.count() * 2);
This approach eliminates excessive change detection and makes your app snappy.
✅ 2. Lazy Load Routes and Components
Use Angular’s powerful lazy loading strategy:
{
path: 'dashboard',
loadComponent: () => import('./dashboard.component').then(m => m.DashboardComponent)
}
This ensures components load only when needed.
✅ 3. Optimize Change Detection Strategy
Use ChangeDetectionStrategy.OnPush for all components. Combine it with Signals or Observables to ensure your app reacts only when data changes.
✅ 4. Analyze & Split Bundle Sizes
Run:
ng build --stats-json npx webpack-bundle-analyzer dist/your-app/stats.json
This helps find large dependencies that can be removed or lazy-loaded.
✅ 5. Debounce or Throttle Expensive Operations
Avoid triggering change detection on every user interaction. Use debounceTime, throttleTime, or manual triggers with Signals and Effects.
🔍 TL;DR – Angular 20 Upgrades to Know
| Feature | Benefit |
|---|---|
| Signals | Fine-grained reactivity, better performance |
| OnPush + Lazy Loading | Faster initial load |
| Built-in Image Tools | Smaller bundles, faster UX |
| Code Splitting & Effects | Responsive, modern experience |
💡 Final Thoughts
Angular 20 is a solid step toward a more reactive, scalable, and performant future. With stable Signals, refined build tools, and first-class performance tuning options, it’s a great time to modernize your Angular applications.
At TechVraksh, we help businesses build high-performance Angular apps that scale. Ready to boost your app’s speed? 🚀
