1. Close all unnecessary apps running in the background before running the game.
If multiple apps are running at the same time, the phone may become too hot due to using a lot of resources.
2. If the mobile device is being charged, disconnect it from the charger.
If you play the game for a long time while the mobile device is plugged into the charger, it may overheat. Please charge the battery at least 50% before playing the game.
3. Try changing your in-game options.
Select the gear icon in the upper right corner of the main in-game screen > Select the Options tab > Change the graphics to Low and turn on Battery Saving.