Visual Studio 2015 causing Unity to hitch if left open.

Hi all.

I recently installed Visual Studio 2015 and set it up to work with Unity. Everything works fine and as expected, however if VS is left running when I alt tab back to Unity, Unity experiences severe hitches about every second.

These hitches affect everything, though it's obviously most noticeable in the scene and game view.

The longer that VS remains open, the shorter the interval between hitches. Visual Studio isn't taking up any more resources than it should and the rest of the computer is unaffected.

As soon as I close VS, Unity goes back to normal.

I have tried adjusting the handful of options in the Visual Studio Tools configuration option, from the dropdown withing Unity, but this had no effect.

Any help or guidance in solving this issue would be greatly appreciated.