Visual Studio does not really have the database performance analysis and tuning tools that you are looking for. You'll need to work with SQL Server tools to monitor and tune your database.
Here's a link to a key section of SQL 2005 Books Online that discusses performance monitoring and tuning for SQL Server as well as all of the SQL Server tools available to help in this work:
http://msdn.microsoft.com/en-us/library/ms189081(SQL.90).aspx
For questions about the performance tools discussed in the documentation (such as SQL Server Profiler, for example) you will probably want to contact the SQL Server tools Forum at http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=84&SiteID=1
Hope this helps
Jeff
Here's a link to a key section of SQL 2005 Books Online that discusses performance monitoring and tuning for SQL Server as well as all of the SQL Server tools available to help in this work:
http://msdn.microsoft.com/en-us/library/ms189081(SQL.90).aspx
For questions about the performance tools discussed in the documentation (such as SQL Server Profiler, for example) you will probably want to contact the SQL Server tools Forum at http://forums.microsoft.com/MSDN/ShowForum.aspx?ForumID=84&SiteID=1
Hope this helps
Jeff