I *think* the Logitech dongle is its own 2.4GHz protocol that is _not_ Bluetooth-based. (I have a mouse which supports both Bluetooth and the Logitech dongle, and another which is dongle-only.) That might explain why you get better performance with the dongle than with built-in Bluetooth.
I *think* the Logitech dongle is its own 2.4GHz protocol that is _not_ Bluetooth-based. (I have a mouse which supports both Bluetooth and the Logitech dongle, and another which is dongle-only.) That might explain why you get better performance with the dongle than with built-in Bluetooth.