A. To improve the smoothness of the process, ensure that your iPhone has enough free storage space. Go to Settings > General > iPhone Storage and check the available space. If it's low, consider deleting unused apps or media files. Additionally, close any background apps that may be consuming resources by double-tapping the Home button (or swiping up from the bottom on newer models) and swiping away apps you are not using.

B. Restart your iPhone to clear temporary files and refresh the system. Press and hold the power button until you see the 'slide to power off' option, then slide to turn off. Wait a few seconds, then turn it back on.