[sholnay]

I had the exact same issue and I still get angry thinking about the phone call I had with a support manager at apple. He blamed me, or possibly my backups. His solution was to factory reset the phone and to never restore my phone or my backups. He seriously wanted me to troubleshoot the issue, app by app, on a clean phone. I can't even imagine how long this would take, weeks? He told me that even if I take it to a store, they probably won't replace the battery because the app says it's fine.

Thinking back, I remember how I basically had Stockholm syndrome with my phone. The performance was incredibly terrible. Swiping on the screen took two or three attempts, opening any app took 2 or 3 touches for it to register. Scrolling was stuttered in any app. I remember my partner deemed my phone unusable (it was 3+ years old, so I certainly expected some sluggishness). I had just built in muscle memory to use my phone, swipe swipe, press press press to open an app.

Sigh, and I'm still with Apple.