Once again, Microsoft has released a new version of Visual Studio. Once again, they have made improvements and seem to do their best to make the default install of VS 2015, a very slow, setup. The following is meant to speed up your system.
Disable Source Control Integration
Disable Browser Link
Not really sure how much this helps but since I am not currently using it, I figured I would disable it. Just make sure there is no check mark next to "Enable Browser Link".