React application feels heavy when scrolling from a mobile phone

React application feels heavy when scrolling from a mobile phone

If you are experiencing performance issues with your React application when scrolling from a mobile phone, there are several possible solutions that you can try to improve the overall performance and make the scrolling experience smoother. Let’s explore some of these solutions:

1. Use React.memo

React.memo is a higher-order component that can be used to memoize the result of a component’s rendering. By wrapping your components with React.memo, you can prevent unnecessary re-renders and improve performance.

Here’s an example:

{`
import React from 'react';

const MyComponent = React.memo(() => {
  // Your component code here
});

export default MyComponent;
`}

2. Optimize rendering with shouldComponentUpdate

If you are using class components in your React application, you can optimize rendering by implementing the shouldComponentUpdate lifecycle method. This method allows you to control when a component should re-render based on changes in its props or state.

Here’s an example:

{`
import React, { Component } from 'react';

class MyComponent extends Component {
  shouldComponentUpdate(nextProps, nextState) {
    // Your logic to determine if the component should re-render
    // Return true if it should re-render, false otherwise
  }

  render() {
    // Your component code here
  }
}

export default MyComponent;
`}

3. Use React.lazy and Suspense for lazy loading

If your React application has a large number of components or heavy dependencies, lazy loading can significantly improve performance. React.lazy and Suspense allow you to load components lazily, meaning they are only loaded when needed.

Here’s an example:

{`
import React, { lazy, Suspense } from 'react';

const LazyComponent = lazy(() => import('./LazyComponent'));

const MyComponent = () => (
  Loading...