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Hello, I'm wondering what is difference between below two expresssions: Int?(nil) -> compiled, nil Int?.init(nil) -> not compiled Int??(nil) -> compiled, nil Int??.init(nil) -> compiled, Optional(nil) I checked the documentation about Optional, and seems I use same initializer for all expressions. but there are differences. anyone knows why?

We found that text rendering takes a lot of time as of iOS 15.2. We measured how much time it takes to assign values to text and attributedText of UILabel in iOS 14.5 simulator and iOS 15.2 simulator, respectively, using long enough and short enough text data. As a result, regardless of the text or attributedText, it was confirmed that iOS 15.2 takes about 4 times more time for a short enough text and 15 times more for a long enough text. And this is causing scrolling freezing. Anyone experiencing this issue? or how can I resolve it?