I had the same issue.
If your motherboard has the connection for WiFi antennas, then your Bluetooth antennas are going to be these. Make sure they are attached correctly. As you mention your computer is new, probably this would be the issue.
Otherwise I'd recommend to buy an USB Bluetooth antenna and see if the issue persists. If so, it's something with your system
I was having this chopping/sttutering audio issue with my Virtuoso SE Premium, tried everything and nothing, you saved me from a lot of headache with this.