QualitySettings.vSyncCount

説明

VSync の数を設定する。

The number of VSyncs that should pass between each frame. Use 'Don't Sync' (0) to not wait for VSync. Value must be 0, 1, 2, 3, or 4.

using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        // Sync framerate to monitors refresh rate
        QualitySettings.vSyncCount = 1;
    }
}

関連項目: Quality Settings.