Why is my iPhone XS Max lagging when I play games?

If your iPhone XS Max is lagging when playing games, first try restarting the device and closing any background apps to free up system resources. Make sure your iOS and the game are updated to the latest versions, as software updates can fix bugs and optimize performance. Additionally, check the available storage on your phone—having enough free space is important for smooth operation.

If the lag continues, check your battery health under "Settings > Battery > Battery Health." A degraded battery can cause performance issues. Also, try reducing the graphic settings within the game if available. For online games, make sure your Wi-Fi or mobile network connection is stable. If these steps don’t help, you may want to perform a factory reset or consult Apple Support to rule out hardware problems.