Sensitivity Problem From Brackeys First Person Controller Tutorial

[Hussain-idiot]

I followed Brackeys 4 year old tutorial on a first person controller and it worked just fine, The sensitivity was a bit low but I just increased it and everything was fine

But when I downloaded some models (couch, chair, etc…) and then stood on them the sensitivity went wild i tried decreasing it but now the camera barely moves

Here is the tutoriel

FIRST PERSON MOVEMENT in Unity - FPS Controller

and Here is the code just in case

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

public class MouseLook : MonoBehaviour
{
    public float MouseSensitivity = 100f;

    public Transform playerBody;

    float xRotation = 0f;

    // Start is called before the first frame update
    void Start()
    {
        Cursor.lockState = CursorLockMode.Locked;
    }

    // Update is called once per frame
    void Update()
    {
        float mouseX = Input.GetAxis("Mouse X") * MouseSensitivity * Time.deltaTime;
        float mouseY = Input.GetAxis("Mouse Y") * MouseSensitivity * Time.deltaTime;

        xRotation -= mouseY;
        xRotation = Mathf.Clamp(xRotation, -90f, 90f);

        transform.localRotation = Quaternion.Euler(xRotation, 0f, 0f);
        playerBody.Rotate(Vector3.up * mouseX);
    }
}

I honestly don’t even know where to troublshoot the problem

Had anyone this problem before ?