title: Sitecore takes longtime to publish items
body: <p>In the Sitecore content tree there are like 600,000 items. But there are only 10,000 items which are publishable. It takes hours and hours to publish the content, infinite time I would say.</p>
  
  <p>But when there are like only 20,000 items, it publishes the tree in 5mins.</p>
  
  <p>Seems like Sitecore is going through all items whether they will be published or not. Is there a way to get rid of this to improve performance?</p>