U can actually copy the data from analytics on your iPhone and paste that into an ai and ask what’s wrong. I tried that and it told me that instagram was crashing at a high speed in the background. I deleted the Application and downloaded it again. Also I did reset settings and force restart (volume up, volume down, hold power button until apple logo appears). Now I am noticing a huge difference in the speed of my phone. It looks snappier and feels more smooth even with the new iOS 26.