Moving child at different speed than parent

I have 2 cameras and need 1 to follow the direction of the other but at a slightly slower speed. Then when you stop moving it centers at the same angle as the parent camera…

Basically the second camera only views objects on a single layer, and I need them to have a trail effect as the player pivots the device and then “catch up” when the player stops moving the camera.

The problem is I’m not controlling the first camera, it’s tied to the device’s rotation, as you move the camera on the device around, the camera in game is moving in sync with it…now I need another camera to trail behind…

Any advice?

Yes. Don’t make it a child.

speed and movement of your second camera need to be calculated in local coords of the parent.