In case you have observed any slowness in your source view around typing or arrowing through code, here are a few tips that may help.

1. Turn off background HTML validation.  Go to Tools / Options and select Text Editor / HTML / Validation in the tree view on the left side.  Uncheck the Show Errors check box.< ?xml:namespace prefix = o ns = “urn:schemas-microsoft-com:office:office” />

2. Turn off AutoRecover.  Go to Tools / Options and select Environment / AutoRecover in the tree view.  Uncheck the Save AutoRecover check box.

3. Close your property grid (View / Properties Window)

Jim Bresler, a development engineer on our team, identified some performance bottlenecks and has made a few fixes recently.  We are seeking volunteers to help us validate that these fixes speed up your scenario.  Please refer to http://forums.asp.net/thread/1274096.aspx if you’d like to help with this.

— Bash