title: Blender 4 Web consumes cpu constantly even after a page is loaded
body: <p>I have created a simple scene with a cube and a sphere using <a href="https://www.blend4web.com/en/" rel="nofollow noreferrer">Blender</a>. Exported it as Blender 4 web json. I have done a simple a simple webpage as follows.</p>
  
  <p><em>index.html</em></p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;head&gt;
  &lt;script src="b4w.full.min.js"&gt;&lt;/script&gt;
  
  &lt;iframe allowfullscreen src="webplayer/webplayer.html?load=../SampleCube/samplecube.json" width="800" height="500"&gt;&lt;/iframe&gt;
  
  &lt;/html&gt;
  </code></pre>
  
  <p>Above file is creating using these guidlines <a href="https://www.blend4web.com/en/community/article/59/" rel="nofollow noreferrer">Blender 4 Web Tutorial</a>.</p>
  
  <blockquote>
    <p>Where do you get the Web Player? You can copy the whole directory blend4web/deploy/apps/webplayer/ with the Web Player files from your Blend4Web SDK and deploy it on your website.
    JSON files can be exported in the same way as the HTML files File > Export > Blend4Web (.json). Upload your exported .json file (with the accompanying .bin file and possible textures) to your website and specify the path to it with the load attribute. Both absolute and relative URLs are supported.</p>
  </blockquote>
  
  <p>When i ran the above HTML(i have started a simple HTTP server in the directory containing the index.html using python), it's ok if the cpu goes high and comes down. But, the problem is this webpage keeps consuming constant amount(say 20%) of CPU. Why is CPU consumed even after a webpage is loaded. Do i need to disable anything in b4w to reduce the cpu usage when i'm not doing any action on webpage(Such as scrolling, clicking).</p>