Problem with camera transitions (slerp)

I have this code before Start()

 public Camera ThirdPerson;
 public Camera FirstPerson;
 
 //Sets the current camerastate to true (default is Third-Person)
 private bool Camerastate = true;

And this code in Update()

 //Sets camerastate to the Third-Person when true, and First-Person when false
         if(Camerastate == true)
         {
             ThirdPerson.enabled = true;
             FirstPerson.enabled = false;
 
             transform.position = Vector3.Slerp(ThirdPerson.transform.position, ThirdPerson.transform.position, Time.deltaTime * Smooth);
             transform.rotation = Quaternion.Slerp(ThirdPerson.transform.rotation, ThirdPerson.transform.rotation, Time.deltaTime * Smooth);
 
         }
 
         else 
         {
             ThirdPerson.enabled = false;
             FirstPerson.enabled = true;
 
             transform.position = Vector3.Slerp(FirstPerson.transform.position, FirstPerson.transform.position, Time.deltaTime * Smooth);
             transform.rotation = Quaternion.Slerp(FirstPerson.transform.rotation, FirstPerson.transform.rotation, Time.deltaTime * Smooth);
 
         
         }
 
         //Sets the Camerastate to the opposite of the current Camerastate
         if(Input.GetKeyDown(KeyCode.Tab))
         {
             Camerastate = !Camerastate;
 
         }
         ////////////////////////////////////////////////////////////////////////////////////////////

If I run this it goes very smooth from First-Person to Third-Person, but not smooth from Third-Person back to First-Person. How can I fix this? Thanl you very much!!