title: Store object size on react-redux
body: <p>Is any performance issue with put many items in <code>redux-store</code>?
  for example, the store is like this:</p>
  
  <pre><code>{
      user:{...},
      userDetail:{},
      shoppingCart:{},
      OrderDetail:{},
      ...
  }
  </code></pre>
  
  <p>Its keys count is almost 50 items.</p>
  
  <p>I'm using <code>react-redux</code> in my project to store any data (even data that are used in one section of my app and are not share).</p>