333194fc_Cumulus_ini___CumulusWiki__Function
[Parameter Line Entry] WindGaugeAnimationFactor=2 [Function] 
Set in the Display Configuration Screen. This sets the speed of the wind gauge animation. Lower values correspond to a faster animation speed. Be careful not to set the animation too slow, particularly with stations which update frequently (e.g. Davis) as the animation will never catch up, and will use significant CPU time.
Cumulus.ini - CumulusWiki
Function