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React is a popular, open-source JavaScript library for creating fast, scalable web applications. When your React app is large and complex with more functions and components, performance will suffer.
An important thing that should not be overlooked in any way is to optimize your React application to have a seamless experience with minimal load times.
In this blog, we will discuss why the performance of an application is important and then explore a few viable performance tips for making your react applications run faster. As a tip, if you are experiencing consistent challenges, you can always hire dedicated React developers to look into the matter deeply.
Why does performance matter in Reaction applications?
The performance of an application matters the most. A website with a less interactive user interface but faster load times tends to be more productive than a site with a highly interactive user interface but with slow load times.
Users want an app to load as quickly as possible, as they have many alternatives on the search engine other than yours. Poor loading speed reduces site engagement, increases bounce rates, and as a result deteriorates your business.
Now, let’s keep all things aside and look into the hacks of elevating the performance of a React application.
- Prevent Unnecessary Rendering
Avoiding unessential rendering in the code can optimize the performance of the React application. For this, one can use React.memo() in the code to optimize the rendering process.
The unnecessary renders are a big reason for poor performance. So, preventing extra rendering is one of the methods to achieve high performance in React applications.
- Opt for the React Built-in Performance Tools
React comes with built-in tools that enable developers to check the performance of the website and make it better. React Developer Tools and React Profiler furnish you with better insights into the components that make your application lag.
- Lazy Loading
Lazy loading is a strategy that when incorporated, reduces the initial load time by only allowing the website components to load that are required.
Utilizing the tools like WebPack and couple it with React.lazy() and Suspense. This will introduce the lazy loading factor in your code and consequently, your application will start performing well.
- Use Production Build for Deployment
Another thing that optimizes the performance of your application is the use of a production build for deployment. There comes a development build in React that includes helpful debugging features, but it may slow down your application. However, the production build gets you rid of the unnecessary code and optimizes the application with high speed, making it faster and smaller.
- Optimize the Images on the Web Pages
It is commonly observed that the developers upload HD images on the website which contributes to slower performance and load times. Handling this issue strategically can elevate the speed of the application.
For this, always upload images using image compression. Moreover, implement the lazy loading technique for media, as it will also contribute to better performance.
- Optimize the Component Depth
While building React components, ensure to keep them less deep. Deeply nested components require excessive rendering time that hinders the performance of the React application. So, to achieve high performance, follow this performance hack as it will reduce the component size and elevate the speed. Moreover, it promotes building a maintainable code.
- No Inline Function Definitions
Another hack that helps you increase the application’s performance is by preventing defining functions inline or within the render method. Defining inline functions leads to unessential rendering that creates performance challenges.
However, you may define functions in the render method as there won’t be any performance issues.
Conclusion
Having a React application with slower load times and bad performance is of no benefit to you. Instead, an application with faster loading times and greater performance has lower bounce rates and higher conversion rates. For optimizing the performance of your React application, consider the mentioned hacks to elevate the performance of your application.
