Currently the displacement of FlingTracker is calculated in runtime using this formula:
x = T * v0 * (1-exp(-t/T))

The exp calculation can be potentially expensive.

We may precalculate an array d[r] = 1-exp(-r) then calculate the displacement in runtime by:
x = T * v0 * d[t/T]

Precalculating d[r] will introduce more complex logic and reduce the precision of the result. More research is needed to see whether we can gain more by doing this.