public void setTrailingSensitivity(float trailingSensitivity) {
        this.trailingSensitivity = trailingSensitivity;
    }
Only has an effect if smoothMotion is set to true and trailing is enabled
Sets the trailing sensitivity, the lower the value, the slower the camera will go in the target trail when it moves.
default is 0.5;

@param trailingSensitivity the desired value (default=0.5)
jme3-core/src/main/java/com/jme3/input/ChaseCamera.java