drecon-unity/Assets/8_Scripts/1_Managers/FPSManager.cs

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

public class FPSManager : MonoBehaviour
{
    // Start is called before the first frame update
    public int m_FPS = 60;
    void Awake()
    {
        Application.targetFrameRate = m_FPS;
    }

    // Update is called once per frame
    void Update()
    {
        if (Application.targetFrameRate != m_FPS)
        {
            Application.targetFrameRate = m_FPS;
        }
    }
}