TabContainer Response

Hello,

I was wondering if someone has tips on improving the response time of
TabContainers?

I have a TabContainer(TC) on a page derived from a MasterPage. The TC is within
an UpdatePanel(UP) and each TabPanel(TP), 7 to be precise, within the TC has an
UP. The UP inside the TP has an invisible ASP:Panel which is initially set to
invisible. I make the Panel visible on click of the Tabs via javascript to show
the content of the Tab. The content of the Tabs are UserControls that have
GridView in them.

Clicking between Tabs takes about 3-5 seconds.

Thanks