title: Firestore slow performance issue on getting data
body: <p>I'm having slow performance issues with Firestore while retrieving basic data stored in a document compared to the realtime database with 1/10 ratio.</p>
  
  <p>Using Firestore, it takes an average of 3000 ms on the first call</p>
  
  <pre><code> this.db.collection(‘testCol’)
     .doc(‘testDoc’)
     .valueChanges().forEach((data) =&gt; {
       console.log(data);//3000 ms later
   });
  </code></pre>
  
  <p>Using the realtime database, it takes an average of 300 ms on the first call</p>
  
  <pre><code> this.db.database.ref(‘/test’).once(‘value’).then(data =&gt; {
       console.log(data); //300ms later
   });
  </code></pre>
  
  <p>This is a screenshot of the network console :</p>
  
  <p><a href="https://i.stack.imgur.com/B0sMV.png" rel="noreferrer"><img src="https://i.stack.imgur.com/B0sMV.png" alt="Firestore slow performance issue get Data"></a></p>
  
  <p>I'm running the Javascript SDK v4.50 with AngularFire2 v5.0 rc.2.</p>
  
  <p>Did anyone experience this issue ? </p>