Framework sensitivity mouse X,Y - Unity

MouseLook.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Serialization;

[RequireComponent(typeof(Rigidbody))]
[AddComponentMenu("Custom/Control Script/Mouse Look")]
public class MouseLook : MonoBehaviour
{
    public enum RotationAxes
    {
        MouseXY = 0,
        MouseX = 1,
        MouseY = 2,
    }

    public float sensitivityX = 9.0f;
    public float sensitivityY = 9.0f;

    public float minY = -45.0f;
    public float maxY = 45.0f;
    private float _rotationX = 0;

    public RotationAxes axes = RotationAxes.MouseXY;

    // Start is called before the first frame update
    void Start()
    {
        Rigidbody body = GetComponent<Rigidbody>();
        if (body != null)
        {
            body.freezeRotation = true;
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (axes == RotationAxes.MouseX)
        {
            transform.Rotate(0, Input.GetAxis("Mouse X") * sensitivityX, 0);
        }
        else if (axes == RotationAxes.MouseY)
        {
            sensY();
            transform.localEulerAngles = new Vector3(_rotationX, transform.localEulerAngles.y, 0);
        }
        else
        {
            sensY();

            transform.localEulerAngles = new Vector3(_rotationX, sensX(), 0);
        }
    }

    private void sensY()
    {
        _rotationX -= Input.GetAxis("Mouse Y") * sensitivityY;
        _rotationX = Mathf.Clamp(_rotationX, minY, maxY);
    }

    private float sensX()
    {
        float delta = Input.GetAxis("Mouse X") * sensitivityX;
        return transform.localEulerAngles.y + delta;
    }
}