There's no swapping on iOS. The delay is probably caused by iOS lazily waking up some hardware. The same happens when you use haptic feedbacks: >Calling the ge

There's no swapping on iOS. The delay is probably caused by iOS lazily waking up some hardware. The same happens when you use haptic feedbacks: >Calling the generator’s prepare() method puts the Taptic Engine in a prepared state. To preserve power, the Taptic Engine stays in this state for only a short period of time (on the order of seconds), or until you next trigger feedback. https://developer.apple.com/documentation/uikit/uifeedbackgenerator https://developer.apple.com/documentation/uikit/uifeedbackge...