It would be better if the auto-scroll went faster the closer the cursor gets to the edge of the window (though it's also important to have a speed limit-it doesn't help anyone if it goes too fast).

当光标越来越接近边界时，滚屏速度就会越来越快(所以应该对最快速度有一个限制，速度太快对谁都没有好处)。

youdao

To make this work with auto layout, the meaning of the top, left, bottom, and right edges within a scroll view now mean the edges of its content view.

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