Hi,
Having played around with the various options on a couple of machines and found no noticeable difference in performance I'd be interested to know what appeared sluggish in your IDE before turning off the 'Enable rich client' option.....

>Have to share this one from CodeProject as it made a *huge* difference on my system
>
>http://www.codeproject.com/Tips/350495/Visual-Studio-2010-WAS-painfully-slow
>
>This is a very quick tip for anyone who, like me, has found Visual Studio 2010 to be painfully slow.
>
> Go to
> Tools ==> Options ==> Environment ==> General ==> Visual Experience
>
> Then UNTICK
> Automatically adjust visual experience based on client performance
>
> And UNTICK
> Use graphics hardware acceleration if available