ACE processes motion independently
The ACE (Acceleration Control Engine) runs its own motion cueing loop at 250 Hz, independent of the simulation frame rate.
When the visual system drops frames during complex scenarios, the motion feed continues uninterrupted. The operator feels continuous motion even when the screen stutters.
Generic motion middleware processes at the visual frame rate. A dropped frame creates a motion gap. Turbulence becomes individual bumps rather than continuous disturbance.