Why is the screen view time for the iPhone so short? It's like 5 seconds before the screen goes dark again. This is not the time you can adjust the time before the phone automatically locks. This is the time for viewing the lock screen.
[Re-Titled by Moderator]
This isn't something you can adjust and while we are all users here on this user to user only forum, I'd imagine it is short to conserve battery power. One typically sees the lock screen, then swipes up to open their iPhone if they have a need to use it. If you don't do anything after the lock screen appears, your phone will assume you don't need to use it, so it goes back to sleep. Again, that is my guess and as users only, we cannot speak for Apple's design decisions.
How to adjust the lock screen view time on iPhone
