camera follows player in constant speed even in slow motion

Im working on a game in which the camera follows the player with the help of Vector3.SmoothDamp(). But when i trigger slow motion the camera is way to slow. I want the camera to feel constantly fast even in slow motion.

Mein Code:
private float slowmotionFactor= 0.2f;
private Vector3 velocityForSmoothDamp;

public void TriggerSlowMotion()
    Time.timeScale = slowmothionFactor;
    Time.fixedDeltaTime = 0.02f * Time.timeScale;
private void FixedUpdate()
    cam.transform.position = Vector3.SmoothDamp(cam.transform.position, player.transform.position, ref velocityForSmoothDamp, 0.01f);

SmoothDamp has an optional parameter deltaTime. The default value is Time.deltaTime, which is affected by timeScale. Pass Time.unscaledDeltaTime instead.