The Bluetooth radio goes by default into power saving mode after a while. This may affect the performance of your Magic device.

Note: Since version 3.0.7.0 the Magic Utilities can disable Bluetooth power saving form the app.
  In the Driver menu uncheck Bluetooth adapter power saving.
  If this menu item is grayed out, the Bluetooth adapter does not support power saving.

Manually disable power saving mode

  1. Open the Device Manager
  2. Expand the Bluetooth Radios node
  3. Double click on the Bluetooth radio. Note: The name is different on your computer. Examples:
    "Generic Bluetooth Adapter", "Intel(R) Wireless Bluetooth(R)", "Apple Broadcom Built-in Bluetooth" 
  4. Select the Power Management tab
  5. Un-check Allow the computer to turn off this device to save power
    Disable Bluetooth power saving

Now repeat these steps for each of your Magic Bluetooth devices:

  1. Expand the Human Interface Devices node
  2. Double click on your Magic device
  3. Select the Power Management tab
  4. Un-check Allow the computer to turn off this device to save power
    Magic Human Interface Devices