1. React
  2. React Alicante
  3. 2018
  4. Help! My React app is slowwwww!

Help! My React app is slowwwww!

Ben Ilegbodu at React Alicante 2018

React’s sophisticated reconciler (aka the “Virtual DOM”) makes updates to the UI feel fast because it optimizes interactions with the DOM. As a result, we no longer have to worry about how to transition our UI from one state to the next. However, the reconciler is not a silver bullet; even the new Fiber Reconciler. Our React apps can still get sluggish, especially as they grow in size and data. Let’s discuss some causes for slow-downs and tools to diagnose problems so that we can speed up our apps.