Camera is lagging when I play.

Hello people! I'm new to unity and I wrote a script to look around with the camera, and it was working fine, then I started making a start menu, and I played it to see if it worked, and my camera would glitch/lag when i looked around. Here is my code:

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);
}
}

Please help!

 

Usually you want to move the camera in LateUpdate instead of Update to allow everything else in your scene to move before you move the camera. But with glitches/lag you should be checking the Profiler for the causes. If your game is working extra long on something else for a few frames, you can't fix the issue with the camera code.

 

Okay, thanks, I'll take a look at it's profiler.

 

Yes, Thank you very much, this is what I needed, in Update camera rendering the scene with a small delay, because the camera renders before moving, with LateUpdate it first moves and then the camera renders.