Bluetooth Cycling Speed

[CLM]

I have a VI, an image of which is attached, that cycles through an array of 3 NXT Objects, sending each of them a bluetooth message. When it finishes, it starts over again sending a new message to the first device. Out of curiosity, I wanted to see at what frequency the cycle iterated (one iteration would be sending a message to all three NXTs once). Using the Elapsed Time expressed VI, I found that  the frequency was between 5-10 Hz. Does this seem slow or is it about right for cycling through that many devices?