Some initial performance glitches with VS 2008 Web Development have
been resolved and a patch has been released. Read more about it on Scot
Guthrie's blog post http://weblogs.asp.net/scottgu/archive/2008/02/08/vs-2008-web-development-hot-fix-roll-up-available.aspx
Direct download https://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=10826 (requires a live account)
About Stuart Manning
ASP.NET 3.5 C#, CSS, Javascript and loving it