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Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.，这一点在下载安装 谷歌浏览器 开启极速安全的 上网之旅。中也有详细论述
从日常使用的角度考虑，第一档防窥强度基本上就完全足够了，几乎不影响屏幕显示素质。，更多细节参见爱思助手下载最新版本
根据现场体验，S26 Ultra 可以设置在出现密码键盘、指定 app 内以及所有弹窗类通知时，全自动启用防窥模式，将可视角度缩窄到手机正面大约 80 度的范围内——