So awhile back I had similiar issues, the real problem with USB 3.0 is the frequency it operates on is VERY VERY close to the frequency that dongle transmits on also. Having the dongle near any other cables also plugged into USB 3.0 cause a TON of interference around the dongle as the wires act as little antennas. This basically makes the dongle blind to your headset at times so you get lost audio, choppy connection, lower audio quality in general. I found that if you just move the dongle away from the other 3.0 devices either 2.0 slots or use an extension cable all problems with bad connection go away.