Character flickering when moving

Hello to everyone. I have a problem, my character was flickering when moving, i don't know why. I'm confused why it was hapenning. here is my code for my character control:

 public class MyCharacterControl : MonoBehaviour 
 {
 private Vector3 moveDirection = Vector3.zero;
 public float Speed = 10f;
 public float JumpSpeed = 40f;
 public float Gravity = 40f;
 public float PlayerRotationRight = 80f;
 public float PlayerRotationLeft = -80f;
 

// Update is called once per frame

void Update () {

CharacterController control = GetComponent();

if (control.isGrounded)

{

  moveDirection = new Vector3(0, 0, Input.GetAxis("Vertical"));
  moveDirection = transform.TransformDirection(moveDirection);
         moveDirection *= Speed;
         if (Input.GetKey(KeyCode.D))
         {
             transform.Rotate(0, PlayerRotationRight * Time.deltaTime, 0);
         }
         if (Input.GetKey(KeyCode.A))
         {
             transform.Rotate(0, PlayerRotationLeft * Time.deltaTime, 0);
         }

}

     moveDirection.y -= Gravity * Time.deltaTime;
     control.Move(moveDirection * Time.deltaTime);

     //ANIMATION TESTING ONLY
 
     if (Input.GetKey(KeyCode.W) || Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.D) || Input.GetKey(KeyCode.S) || Input.GetKey(KeyCode.UpArrow) || Input.GetKey(KeyCode.LeftArrow) || Input.GetKey(KeyCode.RightArrow) || Input.GetKey(KeyCode.DownArrow))
     {
         animation.CrossFade("01_Basic Run");
     }
     else
     {
         animation.CrossFade("Idle_01");

     }

} }

Here is my camera smooth follow to player:

 public class CameraFollow : MonoBehaviour 
 {
 public Transform Player;
 public int Distance = 0;
 public int CameraVertical = 0;
 public float CameraSmootFollow = 0.08f;

 private Transform playerCamera;
 private bool cameraSetup = false;
 private string buttonText = "";
 private Vector3 CameraDistance = Vector3.zero;

 void Start()
 {
     playerCamera = transform;
     
 }

 void Update () 
 {
     if (CameraSmootFollow >= 1)
     {
         CameraSmootFollow = 1;
     }
     else if(CameraSmootFollow <= 0)
     {
         CameraSmootFollow = 0;
     }
     playerCamera.transform.LookAt(Player);
     CameraDistance = new Vector3(Player.transform.position.x, Player.transform.position.y + Distance + CameraVertical, Player.transform.position.z - Distance);
     playerCamera.transform.position = Vector3.Lerp(playerCamera.transform.position, CameraDistance, CameraSmootFollow);

} }