title: How can I speed up composer installs?
body: <p>We have to migrate a few hundred packages to composer, using VCS repository on GitHub and I noticed its even on root servers extreme slow, using a average app with 20 to 30+ packages. On home machines its even worst. In fact it makes the work really tedious and somehow unacceptable. </p>
  
  <p>Are there any improvments which can be done to speed it up? Zip or packagist is not an option for us either.</p>