In zactrack it is possible to store 3 different speed presets for each fixture type which can be changed in real time from the lighting console or manually on the tablet.
Precalc [ms]
XYZ positions in the past are used to predict the future position
Precalc time pushes the position further into the future
Higher precalc makes the curve “jumpy”
0-1000ms common precalc range
Smoothing
Length of history defines the smoothness of the curve
Short history makes the curve less smooth
Long history adds up more latency
0% → no smoothing → almost raw signal
10% - 100% common smoothing range