title: Angular6 long waiting to change
body: <p>I've updated my Angular app to Angular6. </p>
  
  <p>I noticed that my components which are for example displaying data from Observable using pipes are stuck. I mean that they are working, but I have to wait a very long time to auto-update this component. </p>
  
  <p>For example I have store with auth data with flag <code>isLogged</code>. According to this flag some component is changing <code>&lt;button&gt;</code> content from <em>Sign in</em> to <em>Sign out</em> - I think you get the idea.</p>
  
  <p>In previous Angular version (5.x) when I signed in, immediately my button was updated and content was <em>Sign out</em></p>
  
  <p>Currently I have to wait a long time to this button change. There is also another strange behavior - When I clicked on this button, he immediately realized that he has to update, and <em>Sign out</em> appears.</p>
  
  <p>This was only one example, but in my app there are a lot of such components. </p>