title: React PureComponent can be slower than Component? How?
body: <p>I'm referring to a post by Dan Abramov stating:</p>
  
  <blockquote>
    <p>PSA: React.PureComponent can make your app slower if you use it everywhere.</p>
  </blockquote>
  
  <p><a href="https://twitter.com/dan_abramov/status/820668074223353858?lang=en" rel="nofollow noreferrer">(Dan's tweet on the topic)</a></p>
  
  <p>Can someone elaborate on this? Thank you.</p>