title: Ways to reduce CPU usage while using PhantomJS/CasperJS
body: <p>Am using PhantomJS and CasperJS for screenscraping and stuff. The issue which I am facing is that its taking too much CPU usage which makes me feel it might not be that scalable. Are there any ways to reduce CPU usage for the same. Some of which I can think of are:</p>
  
  <p>1) Disable image loading <br>
  2) Disable js loading</p>
  
  <p>Also I want to know if python is more light(in terms of CPU usage) than phantom for the scraping purpose.</p>