I've noticed that my iPhone 13 Pro Max has been lagging quite a bit since I updated to iOS 26. Surprisingly, my brother's iPhone 13 Pro Max runs smoothly on the same update. Even the iOS 26 wallpaper feels sluggish on my device. Can anyone help me figure out why my phone is lagging so much while his isn't?
1 Answer
Have you checked your battery health? Sometimes, a poor battery can cause performance issues. It's worth looking into that first!

My battery health is at 97%.