Character rotation for Y equal to the camera

My camera with the mouse rotates to a position, and I want my character to turn the same direction only, but for one reason the camera turns faster than the character, I don't know if it's because the results are doubled.

public class MoviemientoPlayer : MonoBehaviour { private Vector3 movement; Rigidbody rb; public int contadorSaltos, totalSaltos; public float velocidadSalto, velocidad, gravity, arriba, abajo; public GameObject cam, puntoSalto, cams;

 public LayerMask layerSuelo;

 void Start()
 {
     rb = GetComponent<Rigidbody>();
     cam = GameObject.Find("Main Camera");
     puntoSalto = GameObject.Find("PuntoSalto");
 }

 // Update is called once per frame
 void Update()
 {
     if (Input.GetButtonDown("Jump") && contadorSaltos < totalSaltos)
     {
         rb.velocity = new Vector3(rb.velocity.x, velocidadSalto, rb.velocity.z);
         contadorSaltos++;
     }
 }

 private void FixedUpdate()
 {
     float h = Input.GetAxis("Horizontal");
     float v = Input.GetAxis("Vertical");
     

     if (Physics.OverlapSphere(puntoSalto.transform.position, 0.2f, layerSuelo).Length > 0)
     {
         contadorSaltos = 0;
         velocidadSalto = 14;
     }

         rb.velocity += Vector3.down * Time.deltaTime * gravity;
         Move(h, v);
         Rotacion();

 }

 void Move(float h, float v)
 {
     movement = new Vector3(h, 0, v);
     rb.transform.Translate(movement * velocidad * Time.deltaTime);

 }

 void Rotacion()
 {
     //float he = Input.GetAxis("Horizontal");

     /*  arriba -= velocidadRot * -Input.GetAxis("Mouse X");
       transform.eulerAngles = new Vector3(0.0f, arriba, 0.0f);*/
     //transform.rotation = Quaternion.Euler(transform.rotation.x, cam.transform.rotation.y, transform.rotation.z);
     //transform.Rotate(transform.rotation.x, he, transform.rotation.z);
     arriba += cam.gameObject.GetComponent<ROtacionCamara>().velocidadRot * Input.GetAxis("Mouse X");



     transform.eulerAngles = new Vector3(0.0f, arriba, 0.0f);

 }

public class ROtacionCamara : MonoBehaviour { public float velocidadRot; float arriba, abajo; // Start is called before the first frame update void Start() {

 }

 // Update is called once per frame
 void Update()
 {
     Rot();
 }

 void Rot()
 {
     arriba += velocidadRot * Input.GetAxis("Mouse X");
     abajo -= velocidadRot * Input.GetAxis("Mouse Y");

     //arriba = Mathf.Clamp(arriba, -60f, 90f);
     abajo = Mathf.Clamp(abajo, -90f, 90f);


     transform.eulerAngles = new Vector3(abajo, arriba , 0.0f);
 }

}

}

Sorry i used Google translator

Thank you so much!.