The below sample code which is a plain html with some ext.net controls. This page is taking approx 4 sec to render in IE8 and 2 secs in Chrome which unacceptable with to server side processing.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><META content="IE=8.0000" http-equiv="X-UA-Compatible">
<TITLE>My Dashboard</TITLE>
<META content="text/html; charset=utf-8" http-equiv=Content-Type><LINK
id=ext-theme rel=stylesheet type=text/css
href="Dashboard_files/ext.css"><LINK rel=stylesheet
type=text/css href="Dashboard_files/ext(1).css">
<SCRIPT type=text/javascript
src="Dashboard_files/ext.axd"></SCRIPT>
<SCRIPT type=text/javascript
src="Dashboard_files/ext(1).axd"></SCRIPT>
<SCRIPT type=text/javascript>
//<![CDATA[
Ext.net.ResourceMgr.init({isMVC:true,theme:"gray",appName:"Website"});Ext.onReady(function(){Ext.create("Ext.Viewport",{renderTo:Ext.getBody(),items:[{id:"panelheader",border:false,html:"<div class='header'><div class='systemlogo'></div><div class='corplogo'></div><div class='header-bottom-bar'></div><div class='loginbar'></div></div>",region:"north",bbar:{id:"Toolbar1",xtype:"toolbar",margins:"0 0 4 0",items:[{id:"mnuJobCommon",iconCls:"#PageWhiteAdd",text:"Create New Job",listeners:{click:{fn:function(item,e){setTabConfig({title: 'New Job', url:'welcome.htm', elementid: 'addeditjob', content: 'content'});}}}},{id:"ToolbarFill1",xtype:"tbfill"},{id:"InternalLink",iconCls:"#BookOpen",text:"Help"},{id:"tblsep3",xtype:"tbseparator"},{id:"changePassword",iconCls:"#Key",text:"Change Password",listeners:{click:{fn:function(item,e){setTabConfig({title: 'Change Password', url:'welcome.htm', elementid: 'changepassword', content: 'content'});}}}},{id:"tblsep1",xtype:"tbseparator"},{id:"signOut",iconCls:"#DoorOut",text:"Sign Out(email1@gmail.com)",listeners:{click:{fn:onSignoutClick}}}]}},{id:"tpMain",xtype:"tabpanel",margins:"0 0 4 0",region:"center",items:[{id:"Dashboard",border:false,cls:"content",loader:{loadMask:{showMask:true,msg:"Loading dashboard..."},renderer:"frame",url:"welcome.htm"},padding:10,style:"background:#f5f4f4",title:"My Dashboard",iconCls:"#ApplicationHome"}],activeTab:0},{id:"panelfooter",border:false,html:"<div class='footer'><div class='privacy'></div> <div class='appversion'>1.2.0.20349</div></div>",region:"south"}],layout:"border"});Ext.net.ResourceMgr.registerIcon(["PageWhiteAdd","BookOpen","Key","DoorOut","ApplicationHome"]);});
//]]>
</SCRIPT>
<META name=GENERATOR content="MSHTML 8.00.6001.23543"></HEAD>
<BODY>
<DIV>
<SCRIPT language=javascript type=text/javascript>
var expiryWind = null;
var notification_test = null;
var helpUrl = '/Home/OnlineHelpToDownload';
var initialSessionTimeoutMessage = "You will be logged out of the system in <span id='sessionTimeoutCountdown'>30</span> seconds. If you want to keep your session active Click OK.";
var sessionTimeoutCountdownId = 'sessionTimeoutCountdown';
var redirectAfter = 30; // number of seconds to wait before redirecting the user
var running = false; // var to check if the countdown is running
var timer2;
var timeOut = false;
var redirectTo = '/Login/Authenticate';
var onSignoutClick = function (item, e) {
}
function ShowPopUp(counter) {
}
function PopupCenter(url, title, w, h) {
}
</SCRIPT>
</DIV>
</BODY></HTML>