NXT is connected to Brixc (18.104.22.168 + latest test_release 04/13) via Bluetooth. Connection is up & fast (e.g. NXTPiano, remote control or NXT Screen work perfect, NXT responds instantly). Compiling a program also works in an instance, being completed in less than a second. However, doing "Upload & Run" takes extremely long (far beyond a minute), making debugging turnarounds very tedious. What could be the reason for this? Other users reported the same in forums. Using the Lego software itself, upload and run is performed in less than 5 seconds via Bluetooth.