title: PHPStorm exceptionally slow while editing Javascript
body: <p>I'm using PHPStorm (5.0) as PHP IDE, but I'm busy building some frontend stuff with Javascript at the moment. The problem is: PHPStorm gets <strong>very</strong> slow. It uses all 494M of memory while editing the Javascript file. I don't have any active files other than my Javascript file. The file itself is only 191 lines long.</p>
  
  <ul>
  <li>I invalidated the caches;</li>
  <li>I restarted PHPStorm / my computer;</li>
  <li>I turned off all Javascript inspections.</li>
  </ul>
  
  <p>Is there <em>anything</em> I can do to speed things up?</p>