Has anyone managed to get Bluetooth working properly?  I was excited to find that it discovered & paired with my bluetooth headset, but disappointed to see that the performance is almost unusable.  For example, trying to watch a video with bluetooth-audio, the video plays at about one-quarter its normal speed, with the audio a complete mess - all broken up.   It's not a question of the hardware not being fast enough either, as System Monitor shows the CPU-load at only about 25% when this is happening.  Disconnect the BT-audio, and the video will start to play perfectly at normal speed.

Has anyone come across this?