Extjs4 tree panel is loading slowly in IE7

[kanthu509]

Hi,

Am loading a tree panel with bulk amount of node with lot of child nodes , it had run perfectly in Extjs3.x version with IE and FireFox.

Now Using Extjs4 getting the following message, when I ran in IE7. Working fine in FireFox.

"A script on this page is causing Interner Explorer to run slowly,if it continues run your computer may be unresponsive"

[tobiu]

to get rid of the IE error message, use the "fit it" tool microsoft provides:
http://support.microsoft.com/kb/175500

the rendering performance in ext 4 is slower than in 3, this will get a lot better when the 4.1 beta releases. make sure you keep the amount of nodes as small as possible.

[Susanta_bmc]

Is there any fixes or work around for this in Ext 4.0.7. As we are about to release , and when we were doing a performance test we see the smae issue.

Any suggestions? what would be the best way to load the tree in this scenario.