Seriously Visual Studio?

Why is it when I do the most innocuous things in Visual Studio (like adding a dll reference), my cpu utilization for the process goes through the roof? There’s no feedback or indication why – just the fact that my dev environment becomes completely unresponsive and I just stare at my task manager waiting for minutes on end for my cpu to settle down. Anyone who works with Visual Studio knows exactly what I’m talking about. What is this nonsense? Does Microsoft believe they have a grip hold on the .NET IDE environment and therefore can freely produce a resource draining and wholly inefficient product like Visual Studio? Sure seems like it. Kudos Microsoft for architecting a wonderful development framework and superbly elegant programming language (C#), but sticking me with a tired wheezy old canvas on which to develop on.