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{`import Image from 'next/image';
`}

{`import dynamic from 'next/dynamic';
const DynamicComponent = dynamic(() => import('../components/HeavyComponent'));
`}

{`import { Suspense } from 'react';
const LazyComponent = React.lazy(() => import('./LazyComponent'));
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Strategy 4: Optimize Fonts

Fonts can impact performance significantly. Use the 'next/font' to automatically optimize them.

{`import { GoogleFont } from 'next/font/google';
const roboto = GoogleFont({ family: 'Roboto' });`}

Strategy 5: Leverage Caching

Utilize caching to store static assets and API responses, reducing load times for returning users.

Strategy 6: Prefetch Data

Prefetching data ensures that the necessary data is available before a user navigates to a new page.

{`import { useEffect } from 'react';
useEffect(() => {
  fetch('/api/data').then(response => response.json());
}, []);`}

Strategy 7: Optimize Server-Side Rendering

Ensure that SSR is optimized by reducing the complexity of server-rendered pages and minimizing data fetching.

Use getServerSideProps

{`export async function getServerSideProps() {
  const res = await fetch('https://api.example.com/data');
  const data = await res.json();
  return { props: { data } };
}`}

Strategy 8: Enable HTTP/2

Take advantage of HTTP/2 to make your application faster by allowing multiple requests for data over the same connection.

Strategy 9: Optimize CSS

Minimize CSS and remove unused styles to decrease the payload size.

Strategy 10: Utilize Web Workers

Offload heavy computations to web workers to keep the main thread responsive.

Strategy 11: Monitor and Analyze Performance

Regularly monitor your application’s performance using tools like Lighthouse and Web Vitals.

Strategy 12: Reduce JavaScript Payload

Minimize the amount of JavaScript by removing unused code and dependencies.

Strategy 13: Use Content Delivery Networks (CDNs)

CDNs can significantly reduce load times by serving content from locations closer to the user.

Strategy 14: Implement Efficient State Management

Choose lightweight state management libraries to avoid performance bottlenecks.

Strategy 15: Regularly Update Dependencies

Keep your Next.js and its dependencies up to date to leverage the latest performance improvements.

Conclusion: Key Takeaways

Optimizing performance in Next.js 15 is not just about speed; it’s about providing a seamless user experience. By implementing these strategies, you can significantly improve your application's performance, ensuring it meets the demands of modern users. Stay informed, keep experimenting, and continue optimizing to stay ahead in the competitive web development landscape.