CPU Perlin C# bake

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

public class bakePerlinNoise : MonoBehaviour {

    public Vector2Int resolution = new Vector2Int(128,128);
    public float Tiling = 0.05f;
    public Texture2D perlin;

    void Start() { Bake(); }

    void Bake()
    {
        perlin = new Texture2D(resolution.x, resolution.y)
        {
            name = "Perlin", anisoLevel = 4, filterMode = FilterMode.Trilinear, wrapMode = TextureWrapMode.Repeat,
        };
        Vector4 Shift = new Vector4(Random.value * 214.21f, Random.value * 21.62f, Random.value * 4.21f, Random.value * 523.21f);
        for (int x = 0; x< resolution.x; x++)
        {
            for(int y = 0; y < resolution.y; y++)
            {
                Color toSet = new Color(Mathf.PerlinNoise(x* Tiling, y* Tiling),
                    Mathf.PerlinNoise((x + Shift.x)* Tiling, ( y + Shift.y)* Tiling),
                    Mathf.PerlinNoise((x+ Shift.z)* Tiling, ( y + Shift.w) * Tiling));
                perlin.SetPixel(x, y, toSet);

            }
        }
        perlin.Apply();

        Shader.SetGlobalTexture("_Perlin", perlin);
    }
}