vaadin+javascript....loading javascript libraries

Hi all,
           i have integrated vaadin with ExtJs...cool everything is going fine..but the problem is loading extjs library...my extjs library is of 2mb....to load onto the chrome browser,it is taking 4-5mins.......any tips,guidance will be needful..

@JavaScript({"Jslibraries/ext-all.js","Jslibraries/sch-all-debug.js","js/SchdeulerConnector.js","})
@StyleSheet({"Jslibraries/examples.css","Jslibraries/ext-theme-classic-all.css","Jslibraries/sch-all.css","Jslibraries/style.css"})
//@JavaScript({ "Schdeuler.js" })
public class SchedulerComponent extends AbstractJavaScriptComponent  {
    public void setId(String id){
        getState().divId="";
    }
    public String getId(){
        return getState().divId;
    }