iPhone 12 user here, My iPhone is almost full with 236/256GB used, I also have 87% Battery health and run iOS 17.1.1 and my phone runs smooth as fuck.
I’d probably try connecting it to a charger and see if that fixes the issue. or try disabling background app refresh completely too just to see if that fixes it.
Have you restarted the device? (normally shut off and back on again)
Have you tried a hard restart?
iPhone 12 user here, My iPhone is almost full with 236/256GB used, I also have 87% Battery health and run iOS 17.1.1 and my phone runs smooth as fuck.
I’d probably try connecting it to a charger and see if that fixes the issue. or try disabling background app refresh completely too just to see if that fixes it.
Have you restarted the device? (normally shut off and back on again)
Have you tried a hard restart?