I have had this issue appear on multiple PC's (HP Envy, MSI gs65) I've owned only common denominator is windows 10. I don't know why but when I have any bluetooth audio device connected to my laptop occasionally the audio will begin to stutter and lag and my entire system will slow down. I've tried so many different solutions but nothing seems to fix it, the main problem is this occurs rarely enough that it's difficult to troubleshoot but often enough that it's incredibly bothersome. It occurs with different audio sources from itunes to youtube and it's occurred on every bluetooth audio device I've owned (Jaybird tarah pro, Fugoo tough, jaybird x3). If anyone can help me out I would really appreciate it.