Nomad autoscaler, cooldown process for scale-out and scale-in

Hi all.
Configured nomad-autoscaler agent everything works as expected. Only one thing i can’t trace down cooldown interval for scale-out and scale-in event are different. After scale-in event policy evaluation starts in approx 2*cooldown intervals.
A bit stuck with it. Other then that - everything works as expected.

Nomad autoscaler version: 0.4.6, OSS.