UE5 EA Chaos Vehicle - Are physics calculated at same frequency when vehicle is stationary?

Hello devs,

Is the chaos vehicle physics engine running at a lower frequency when the vehicle is stationary?

My issue is: When the vehicle is stationary and I rev the engine the output is stuttering/jerky/lagging. As soon as the vehicle starts to move the problem is gone. When the vehicle stops the issue comes back. I noticed the same behaviour on steering wheels and I checked and it is the same on the template chaos vehicle.

To me this looks like an intended optimization done for when the vehicle is stationary but something I would like to avoid / turn off.

To anyone experiencing this issue…it’s only happening when tick async physics is on in project settings.