Hi,
I upgraded from IOS 15.7 to 16.2 on my iPhone 12 Pro Max and now, it is slow on tap-to-wake. I have to long press to wake it up and then unlock with FaceID.
there seams to be same issue among users of different iPhone models. So, there’s clearly a performance issue that is still there even with 16.2 version.
Hello danvin67,
Welcome to Apple Support Communities. This could be resulting from your battery health and lifespan. We suggest trying a few of the tips here to help you with this issue: Maximizing Battery Life and Lifespan
Optimize your settings.
There are two simple ways you can preserve battery life — no matter how you use your device: adjust your screen brightness and use Wi‑Fi.
Dim the screen or turn on Auto-Brightness to extend battery life.
•To dim, open Control Center and drag the Brightness slider to the bottom.
•Auto-Brightness adjusts your screen to lighting conditions automatically. To activate it, go to Settings > Accessibility. Tap Display & Text Size, then turn on Auto-Brightness.
When you use your device to access data, a Wi‑Fi connection uses less power than a cellular network — so keep Wi‑Fi on at all times. To turn on Wi‑Fi, go to Settings > Wi‑Fi to access a Wi‑Fi network.
Should this persist, get in touch with Apple Support for further assistance:
Have a great day!
IOS 16.2 on iPhone 12 Pro Max slow on tap to wake
