cinemachine makes my camera movement laggy in unity - unity3d

Question

I'm curently using cinemachine to make a third person camera. My player's movements work and i wanted him to look in the direction he is moving but taking in consideration the rotation of the camera. It works when i don't move the camera while moving the player but when i move the camera the rotations of my player are laggy moreover every movement of my camera seems to be laggy too. Sorry for my english i hope it's clear here is my code :
public class ThirdPersonScript : MonoBehaviour
{
[SerializeField] private float speed;
[SerializeField] private float jumpForce;
[SerializeField] private Transform feet;
[SerializeField] private LayerMask floorMask;
[SerializeField] private Transform cam;
private Vector3 direction;
private Rigidbody rb;
private bool canJump;
// Start is called before the first frame update
void Start()
{
rb = GetComponent<Rigidbody>();
}
// Update is called once per frame
void Update()
{
direction = new Vector3(Input.GetAxis("Horizontal"), 0f, Input.GetAxis("Vertical"));
direction = Quaternion.AngleAxis(cam.rotation.eulerAngles.y, Vector3.up) * direction;
if (direction.magnitude > 1.0f)
{
direction = direction.normalized;
}
direction *= speed;
canJump = Input.GetKeyDown(KeyCode.Space) ? true : false;
}
void FixedUpdate()
{
if (Physics.CheckSphere(feet.position, 0.1f, floorMask))
{
if (canJump)
rb.AddForce(Vector3.up * jumpForce, ForceMode.Impulse);
else
rb.velocity = new Vector3(direction.x, 0, direction.z);
}
else
rb.velocity = new Vector3(direction.x, rb.velocity.y, direction.z);
if (direction != Vector3.zero)
{
Quaternion targetRotation = Quaternion.LookRotation(direction);
targetRotation = Quaternion.RotateTowards(transform.rotation, targetRotation, 1080*Time.fixedDeltaTime);
rb.MoveRotation(targetRotation);
}
}
}
and a screenshot of my cinemachine settings and my hierarchy :

Answer 1

Try change the direction in LateUpdate() but not Update() :
void LateUpdate()
{
direction = new Vector3(Input.GetAxis("Horizontal"), 0f, Input.GetAxis("Vertical"));
direction = Quaternion.AngleAxis(cam.rotation.eulerAngles.y, Vector3.up) * direction;
if (direction.magnitude > 1.0f)
{
direction = direction.normalized;
}
direction *= speed;
canJump = Input.GetKeyDown(KeyCode.Space) ? true : false;
}
LateUpdate is called after all Update functions have been called. This is useful to order script execution. For example a follow camera should always be implemented in LateUpdate because it tracks objects that might have moved inside Update.
https://docs.unity3d.com/ScriptReference/MonoBehaviour.LateUpdate.html