title: Sencha Touch - Peformance issue with senchatouch js size
body: <p>I have build application using sencha touch, its all working fine except initial issue of initial loding time.
  I have make its native app. using phonegap, have build its jsb3 file and app-all.js using that.
  but its nothing to do with sencha-touch.js which has original size of about 2.4 M.B.
  and its minified is also about 600 K.b. which is very large for mobile/tablet.</p>
  
  <p>Is there anything like we can use sencha.js for only those component we are using in app ? or anyother way to reduce size or initial loading time?</p>
  
  <p>Please provide me solution for this </p>