How to make RadGrid Lighter?

My page contains a tabcontainer with 5 tabs. Each tab contains multiple RadGrids As RadGrid is heavier than ASP.NET gridview. My page lags i.e runs very slowly. My UI is very slow i.e switching between the tabs sometimes 开发者_JS百科hangs the browser. I want to make the Telerik RadGrid lighter in order to make the browser handle multiple RadGrids & I cant remove the RadGrids because i have already written code according to Rad controls. I dont want interactive UI How can i remove extra UI functionality from RadGrid so that it will be as lighter as Normal ASP.Net GridView?

You might find some helpful advice from Telerik directly: Client/server grid performance optimizations

In particular, consider loading the content of the individual tabs on demand (ie: only after clicking on a tab). The page will be much lighter and quicker.