title: Slow Regeneration in Jekyll
body: <p>I'm developing a blog using jekyll and up until now I was very happy with it.
  But as I make more posts the regeneration times are getting ridiculous (3-4 minutes). It's just not feasible to wait that long every time you make a change.</p>
  
  <p>Specs:</p>
  
  <ul>
  <li>Ruby 2.2.1</li>
  <li>Jekyll 2.5.3</li>
  <li>markdown: kramdown</li>
  <li>highlighter: pygments</li>
  <li>permalink:pretty</li>
  <li>Working on a cloud service (Cloud9) with 2 GB of RAM</li>
  <li>Not a lot of posts (~10), but I do use a lot of data (10 MB of json files in the "_data" folder, 14 MB of images in "img" folder)</li>
  <li>Total size of the "_site" folder is 40 MB</li>
  </ul>
  
  <p>Is it a normal thing with these specifications?</p>
  
  <p>I've updated to Jekyll 3.0 to try incremental regeneration, but it didn't help in my case. </p>
  
  <p>Any ideas?</p>
  
  <p>Thanks!</p>
  
  <p>Willem</p>