A. 1. Ensure your device has sufficient storage space. Go to Settings > General > iPhone Storage to check and free up space if necessary. 2. Disable background app refresh for non-essential apps by going to Settings > General > Background App Refresh. 3. Reduce motion and animations by going to Settings > Accessibility > Motion and turning on Reduce Motion. 4. Clear the app cache by uninstalling and reinstalling the app.

B. 1. Check for any app updates in the App Store, as updates may include performance improvements. 2. Restart your device to clear temporary files and refresh system resources.