Is it possible to request faster screen updates in a datafield

I am developing a datafield which gives realtime wind information feedback to the user of a Garmin Edge130 (so apps are out!), using our own device which transmits at 8Hz.

I need the screen to update faster than the standard 1s.  I am calling Ui.requestUpdate() from the ANT message receive event, but it doesn't alter tha screen refresh rate.  Timers are not available to datafields. 

Is there a way to increase screen refresh rate on datafields, or are we stuck with 1 second?