1, open settings, open Siri, and search.
2. Next, you need to turn off all Siri suggestions, as shown in the figure below.
3. Next, you need to click "General", as shown in the figure below.
4. Turn off all background application refreshes, or keep only a few important ones.
5. Click "Accessibility" and "Dynamic Effects".
6. Next, you need to turn on the attenuation dynamic effect, as shown in the figure below.
7. Turn on the battery and click "Battery Health" to turn on the optimized battery charging. Then your mobile phone will return to its peak.