A. 1. Ensure that your device has enough storage space by going to Settings > General > iPhone Storage. Delete unnecessary apps or files if storage is low. 2. Close any background apps that may be consuming resources by double-tapping the home button and swiping up on apps you are not using.

B. 1. Try restarting the app by closing it completely and reopening it. 2. If the app has a 'Clear Cache' option in its settings, use it to improve loading times.