title: View controller takes time to load
body: <p>I have 2 view controllers.
  View controller A and View Controller B.
  When I click on a button on View controller A, it pushes me to View Controller B. But when I click on button on View Controller A, it takes time to load the View controller B and shows some lag on the page.</p>
  
  <p>I am using 3 collection views on the View Controller B.</p>