title: super slow node npm commands
body: <p>I have node v.4.4 with npm v.2.14.20 (default bundled with windows installer). My OS: Windows 7 64bit. Hardware: Dell laptop, 16GB RAM, SSD, core i7.</p>
  
  <p>I'm facing a problem with extremely slow npm. For example when I want to check version of node with</p>
  
  <pre><code>node --version
  v4.4.0
  </code></pre>
  
  <p>I receive output <code>4.4.0</code> within miliseconds.
  But when I type</p>
  
  <pre><code>npm --version
  </code></pre>
  
  <p>I need to wait ridiculous <strong>8-15 seconds</strong> to receive an output! And it's the same with every single npm command. </p>
  
  <p>What i tried: update npm (to most recent 3.x version), update node to 5.9.0, i also tried my luck with x86 versions - same thing.</p>
  
  <ol>
  <li>Any clues what can cause such "sleep" (it's only with <code>npm</code>, every other cmd command works fine, system works fine)?</li>
  <li>I will appreciate any tips how I can debug this thing to see what's going on under the hood</li>
  </ol>