ko is the fastest but the futaba 2.4 looks neat.
The KO is KOed in speed by the Nomadio by far.
The React the fastest radio period.
The frame rate of the Futaba HRS is 75hz the Nomadio 100Hz
Whe you ADD a plug in RF deck with 3ms to 15ms lag you are ADDING that lag to the lag of the radio already has. Thus you are slowing it down.