Please find the answer to your question in the following forum thread: http://www.telerik.com/community/forums/winforms/themes-and-visual-style-builder/theme-makes-loading-really-slow-in-winforms.aspx
As a side note, I noticed that the other question, was asked from another person in your company, which is added as Licensed Developer to a valid license. Please note, that if more than one person is working with our suite, you will need to purchase a license for each developer. The licensing for our .NET products is developer based. This means that each developer working on the UI (using our controls at design-time in Visual Studio) needs a license. The software does NOT work with license keys and you can safely install it on any machine without worrying about license key errors. More details are provided here: http://blogs.telerik.com/VassilTerziev/Posts/08-01-15/Telerik_licensing_demystified.aspx?ReturnURL=%2fVassilTerziev%2fPosts.aspx
. In other words, we do not impose any limitations on the number of projects, machines or servers the software is used on, as long as it’s used by the same licensed developers.
I hope that you find this information useful.
All the best,
the Telerik team
Q2’11 SP1 of RadControls for WinForms is available for download (see what's new); also available is the Q3'11 Roadmap for Telerik Windows Forms controls.