I'm having a similar issue but on my bootcamp partition -- Windows 10 Anniversary Edition. My bluetooth headset is stuttering tremendously. I fix it occasionally by uninstalling the bluetooth drivers, restarting the computer, then the bluetooth drivers install on their own when they detect the device after restart. However, after a while, the audio coming out of my bluetooth headset starts to stutter again.
I can confirm this is a problem with my MacBook using Windows. I don't get the same problem when I'm on Sierra, and I don't get the same problem using my Desktop computer that has Windows 10 Anniversary Edition using the same bluetooth headset.
I hope I can get some help. I really want to use this bluetooth headset.
Sincerely, Kareem