手机苹果6s 系统13.5.1
我用C++层的 Application单利的getScheduler 获取到的Scheduler对象注册了一个1秒回调的事件，但是回调严重延时，我打印了下回调的时间间隔
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dt都是0.00几秒，我设置的是60FPS，那么dt一般在0.016左右，所以现在是好长时间才回调一次。。。
复现方式一般是启动后直接这样，从后台到前台也会这样，但是有时候又是正常的。。。
目前只在iOS上测过，不知道安卓情况。且在js层的cc.director.getScheduler().schedule却没有这个问题，js层的schedule和c++的schedule不是同一个计时吗？？？？