https://blog.wongcw.com/2020/06/29/ios-14%e6%9b%9d%e5%85%89iphone-12%e9%85%8d%e7%bd%ae%e7%b4%b0%e7%af%80%ef%bc%9a120hz%e5%b1%8f%e3%80%81%e6%94%af%e6%8c%814k-120fps%e8%a6%96%e9%a0%bb%e9%8c%84%e8%a3%bd/