title: Ng-repeat without freezing UI on over 12k records
body: <p>i have over 12k images mostly 10x10 size converted to base64 in a json array,
  and i have the size of the image in the json and x,y coordinates where i want to show the image on the screen,
  the json look like this</p>
  
  <pre><code>[{"id":"1","width":"10","height":"10","image":"iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAIAAAACUFjqAAABFElEQVQYlTWNzUvCcByHP9+x1c9kMv3Jei8J\/QMibHQKSvrjoqCTV2\/dugcdY5CXFaH04hz4lhrl\/G3lVgPXQXuODw88dH33sJYqAPCpywmfMQBwwu90481rUBDEMcOMBAAgAPwo1hVy3W8ZCCkEAMYYgAmCr2ieR2ogj12xsro86A8BITxhOR0AmUz2mXxqDiQpq79HsbuYPjs\/tZzOcenItIPyZaWY0jeLJdlsCQDtUW1r74Abh2ZLeLbnOUlO2M1rdFG9Xegm57Of5usHKxjaSX6fq8q99UjlK2tnXQIw4duzqD2qNarjip+APZHrvV69N\/Md\/FMwtJuUntZzZD69AEjrOQBcVVSFKAwZmwJLg\/7wD2cKcW+hz09jAAAAAElFTkSuQmCC","title":"Sovereign Grace Ministries","url":"http:\/\/www.sovereigngraceministries.org\/","order_id":"6106","x":"0","y":"0"}....
  </code></pre>
  
  <p>now im showing these images on Ionic1 AngularJS Mobile Application</p>
  
  <p>ng-repeat looks like this</p>
  
  <pre><code>&lt;div id="wrapper"&gt;
      &lt;div ng-click="showModal({{ad.order_id}})" ng-repeat="ad in mainBillboard" style="position:absolute;cursor:pointer;background-image: url(data:image/png;base64,{{ad.image}});width:{{ad.width}}px;height:{{ad.height}}px;top:{{ad.y}}px;left:{{ad.x}}px"&gt;&lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I used base64 for fast loading of image which worked for me and #wrapper position is set to relative, now the result looks like this</p>
  
  <p><a href="https://i.stack.imgur.com/JDYx5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JDYx5.png" alt="enter image description here"></a></p>
  
  <p>its a small screenshot of the screen just for an idea</p>
  
  <p>problem is, during np-repeat even the loader on the screen freezed for few seconds until the UI gets updated, all i want is the loader to keep running until the ng-repeat finish</p>
  
  <p>i have found similar problems with ng-repeat but nothing seem to solve my problem</p>