Carrying object with MovePosition shaking/vibrate

Hello,I have the possibilty to pick up object, carry them and drop them. That works but while I carrying my object it's shaking. I am using MovePosition in FixedUpdate() I tried several thing but I can't fix it. Have you an idea how to resolve it ?
thanks !

here some part on my code :

Update() :

 void Update () {
         
         if(carrying) {
 
             // the desired position on our carrying object
             carryPosition = mainCamera.transform.position + mainCamera.transform.forward * distance;
 
             // to avoid possibility the carrying object through the ground
             if (carryPosition.y <= distY) {
                 carryPosition.y = distY;
             }
             carriedObject.GetComponent<Rigidbody> ().velocity = Vector3.zero;
             carriedObject.GetComponent<Rigidbody> ().angularVelocity =Vector3.zero;
 
  
             // if click on mouse, we drop the carrying object
             checkDrop();
 
             // if the object enter in collision with a wall we drop the object
             checkCollision ();
         } else {
             // pick up the object front of the camera
             pickup();
         }
     }

FixedUpdate():

 void FixedUpdate(){
     
         if (carrying) {
             //Move our carrying object to the carryPosition
             carriedObject.GetComponent<Rigidbody> ().MovePosition (carryPosition);
         }
     }

PickUp() :

 void pickup() {
         if(Input.GetMouseButtonDown(1)) {
             int x = Screen.width / 2;
             int y = Screen.height / 2;
 
             Ray ray = mainCamera.GetComponent<Camera>().ScreenPointToRay(new Vector3(x,y));
             RaycastHit hit;
             if(Physics.Raycast(ray, out hit)) {
 
                 // all object which can be pick up have Pickupable.cs as script
                 Pickupable p = hit.collider.GetComponent<Pickupable>();
                 pick = p;
 
                 // if there is an object pickupable and the distance between the camera and the object is less than distance
                 if(p!=null && Vector3.Distance(p.gameObject.transform.position, mainCamera.transform.position) < distance) {
                     
                     carrying = true;
                     carriedObject = p.gameObject;
                     p.gameObject.GetComponent<Rigidbody>().useGravity = false;
 
                     // rotate the object to the defaut rotation
                     p.transform.rotation = Quaternion.identity;
 
                     float YOrigin = p.GetComponent<Collider> ().bounds.center.y;
                     float YMin = p.GetComponent<Collider> ().bounds.min.y;
 
                     // the distance from the center of the object to the bottom of the object
                     distY = YOrigin - YMin;
                 }
             }
         }
     }