Visual stutter from "Editor Loop" on project with few assets

I have a plane, a first person camera, and a player controller in a scene. There's a weird stutter in the game preview even though there are not a lot of assets in the project, average FPS, and don't see lag on other heavier projects. I tried changing the asset and replacing with a cube, still see the lag.

Any idea what could be causing this? Game is not GPU bound.

Environment

• Windows 10 NVIDIA GeForce RTX 3060
• Intel(R) UHD Graphics
• Unity 2021.3.14f1
• DX 11

Steps to reproduce:

1. Add plane + lighting settings (turned off lightbox and changed environment color to black)
2. Add capsule
3. Add player controller script
4. Add first person camera script
5. Add tree fbx
6. Add audio source to tree fbx
7. See visual stutter
8. Tried deleting tree fbx and added cube to see if I
   still get the visual stutter - still there
9. Tried deleting first person camera script - visual stutter still there

I think its a hardware issue because i see the visual stutter just moving assets in the game preview without running it. but i dont see it running other projects.

Player Controller script

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

public class PlayerController : MonoBehaviour
{
    // The speed at which the character moves
    public float moveSpeed = 5.0f;

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

    void UpdatePlayer()
    {
        // Get the input axis for horizontal movement
        float horizontalInput = Input.GetAxis("Horizontal");

        // Get the input axis for vertical movement
        float verticalInput = Input.GetAxis("Vertical");

        // Calculate the movement vector
        Vector3 movement = new Vector3(horizontalInput, 0, verticalInput) * moveSpeed * Time.deltaTime;

        // Move the character
        transform.position += movement;
    }
}

First Person Camera script

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

public class FirstPersonCamera : MonoBehaviour
{
    // Variables
    public Transform player;
    public float mouseSensitivity = 2f;
    float cameraVerticalRotation = 0f;

    bool lockedCursor = true;


    void Start()
    {
        // Lock and Hide the Cursor
        Cursor.visible = false;
        Cursor.lockState = CursorLockMode.Locked;

    }

    
    void Update()
    {
        // Collect Mouse Input

        float inputX = Input.GetAxis("Mouse X")*mouseSensitivity;
        float inputY = Input.GetAxis("Mouse Y")*mouseSensitivity;

        // Rotate the Camera around its local X axis

        cameraVerticalRotation -= inputY;
        cameraVerticalRotation = Mathf.Clamp(cameraVerticalRotation, -90f, 90f);
        transform.localEulerAngles = Vector3.right * cameraVerticalRotation;


        // Rotate the Player Object and the Camera around its Y axis

        player.Rotate(Vector3.up * inputX);
       
    }
}

Edit Mode

Play Mode