Symptoms
I recently installed VS 2013 and I started to notice a slowdown in my JavaScript debugging for VS 2012.  Each step takes about 7-10 seconds. C# debugging seems unaffected.  I did this on a Windows 7 64 bit machine.  I followed all of the answers in this question to try to resolve it, without any luck.  Other questions on SO had similar answers, so I am not linking them.  Uninstalling VS 2013 did not resolve the issue.  The only solution was to perform a system restore.
After the system restore I re-installed VS 2013 and the slowness returned.
Next I installed VS 2013 on a Windows 8 64 bit Virtual Machine.  The symptoms were the same.
Workaround
As mentioned the only solution that I have is to perform a system restore to before the install of VS 2013.
Desired Solution
I would like to have both versions of Visual Studio installed and no slowdowns in debugging.
Does anyone have any suggestions on what I can try or another place to look?
 
    