Why would a simple modal view controller lag when presented and dismissed?

为什么一个简单的模态视图控制器滞后时，解雇了吗？

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The thermal sensor had a large lag phase, so the data got by the sensor of digital mass flow controller should be compensated in advance.

热式传感器有很大的滞后环节，在数字质量流量控制器中需要对传感器数据进行补偿。

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Namely, after modifying dynamic curve, in the period of valley point , a single output fuzzy controller and a double output were applied respectively depending on advance or lag of valley point time.

即把动态特性曲线经过科学修正以后，在谷点时间到达阶段，根据谷点到达时间的提前或滞后，分别采用单输入单输出和双输入单输出模糊控制器进行控制；

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Troubling, however, is the noticeable lag between the game controller and the OUYA. From games to UI, the lag was a noticeable issue -- other journalists we spoke with encountered the same issue.

ENGADGET: The final OUYA retail console is ready, we go hands-on HD

While playing, there's minimal, though noticeable lag between input on the controller and action on the screen.

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The product, Microsoft says, can read your body and render your motion with less time lag than the Wii, which requires a controller.

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