Details
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Bug
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Resolution: Unresolved
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P2: Important
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None
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5.15
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None
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OS: macOS Catalina 10.15.5
Hardware: Mac mini (2018) 3,2 GHz 6-Core Intel Core i7, 16 GB 2667 MHz DDR4, 512 SSD
Description
When opening a QFileDialog on macOS Catalina and browsing through the finder's folders, the first time I go to a folder, the files and subfolders are all greyed out during less than one second. I don't notice such a behaviour on native macOS apps.
Instruments' Time Profiler reveals that the [QNSOpenSavePanelDelegate panel::shouldEnableURL:] message took most of the cpu time.
See Apple documentation: https://developer.apple.com/documentation/appkit/nsopensavepaneldelegate/1535200-panel?language=objc
PS: attached trace and video are not linked.