I’m using automation to control SBA faders. Why is the latency so high?

I’m using automation to control SBA faders. Why is the latency so high?

The Show Buddy Active window refreshes at a slow rate to minimise CPU load. But DMX data is always transmitted at full speed, with high priority and low latency.

See this short demo on YouTube. Notice the labels under the SBA channel faders update slowly. But the ‘ArtNetMon’ app (displaying the DMX data stream from SBA) shows the data running reliably with low latency.