Hi there,
I can confirm that running development apps on an iPhone connected via USB is now much slower than before.
Xcode stays in the "Installing on " state for roughly 5-10 seconds on average, whereas previously this was almost instant.
This massively slows down development, since this is an action I run several times a minute, especially when doing UI work.
(I can also confirm that the "Connect via network" checkbox is checked and disabled.)
Versions:
macOS Version 13.6 (Build 22G120)
Xcode 15.0 (22265) (Build 15A240d)
iOS 17.0.1 (21A340)