To have minimal latency basically everything needs to stay active constantly. CPU is constantly awake sending or receiving data. Radio is constantly awake. Inte

To have minimal latency basically everything needs to stay active constantly. CPU is constantly awake sending or receiving data. Radio is constantly awake. Interconnects constantly awake. If you instead send a large buffer, you can sleep between bursts of work. Dropping to lower power states in the interim, and only a small DSP doing the audio output needs to be awake.