A. 1. Close Background Apps: Double-tap the home button (or swipe up from the bottom on newer iPhones) to view all open apps. Swipe up on the apps you are not using to close them. This frees up memory and can improve performance. 2. Restart Your Device: Hold down the power button until you see the 'slide to power off' option. Slide to turn off your iPhone, wait a few seconds, and then turn it back on. This can clear temporary files and refresh the system.

B. 3. Update the App: Go to the App Store, tap on your profile icon at the top right, and scroll down to see if Knife Hit has an update available. Keeping the app updated can fix bugs and improve performance.