Not focussing correctly on iPhone 15 Pro

[David]

Describe the bug
When scanning a code from near, iOS switches to macro lens, which happens fast in the camera app in iOS. For ZXing, iOS seems to use the wide-lens per default and when scanning it takes seconds to focus correctly. Not a code problem from me, also happens in demo.

Expected behavior
Focus should happen immediately.

Smartphone (please complete the following information):

• Device: iPhone 15 Pro
• OS: iOS 17.1.2
• Browser Safari
• Version 17

Screenshot