The Booster Inertia Dampener is a module of the Boosting locomotion; it provides a particular functionality for its parent Booster. If it is disabled or removed, then the relevant boosting functionality will behave as by default. Most modules can optionally affect change globally (for both hands' Boosters). Booster modules can also depend upon conditions specified by their dependencies settings.
This module handles inertia dampening. With inertia dampening on, the player experiences greater responsivity when changing their direction of motion. You can toggle inertia dampening and tweak the factor by which to dampen inertia.
You can also setup input to toggle inertia dampening.