(This article is available in English and Japanese)
If your device fully meets the requirements for supported devices, yet you still are experiencing lags or freezes, performing the following actions may help to mitigate performance issues:
Restart your device
Reinstall the app
Disable apps running in the background
Set the app's graphics quality to 'Low' in the settings
Uncheck '60 fps While Hunting' in the settings
Download all assets in the settings
Update your device's OS
(Android) Update Google Play Store / Google Developer Services
(iOS) Turn off low-power mode
(If the device is hot) Take a break from playing to cool down the device
Please note that performance has been observed to degrade under the following special circumstances:
Running the app and a sleep-tracking app simultaneously
Playing the app with a device manufacturer’s proprietary Data Saving feature turned on when not connected to Wi-Fi
Playing the app with a device manufacturer’s proprietary Game Optimization mode turned on
Playing the app when connected to Apple CarPlay
Therefore, please visit the Apple or Google support pages for more information on performance improvements.
Apple: https://support.apple.com/102598
Google: https://support.google.com/android/answer/7667018
Moreover, performance may also degrade if the device's battery is deteriorating. Replacing the battery can improve this issue so please consult your device manufacturer's official website for more details.