Efficiency is the main focus. Since Visual Studio's inception, it has been a race of constant improvements and attempts to improve the efficiency of the tool in every release. However, crashes and freezes are common when you work with the tool for a long time. The problems get worse when you have more than one project under development and then you need a very powerful computer to be able to perform complex developments. Even having a very powerful computer, as in my case, does not prevent you from having freezes from time to time. Long installation or upgrade times are sometimes a problem.
