title: (Three.js) Bloom effect performance
body: <p>It has 50-60fps, if there is no bloom effect.</p>
  
  <pre><code>renderer.render( scene, camera );
  </code></pre>
  
  <p>Then, just have 10fps after added bloom effect.</p>
  
  <pre><code>camera.layers.set( BLOOM_SCENE );
  bloomComposer.render();
  camera.layers.set( ENTIRE_SCENE );
  finalComposer.render();   
  </code></pre>
  
  <p>How can i fix it? demo link is here
     <a href="https://codepen.io/anson-chan/pen/QXeKqm?editors=1010" rel="nofollow noreferrer">https://codepen.io/anson-chan/pen/QXeKqm?editors=1010</a></p>