The screen keeps stuttering during play.

For a smooth playing experience, please make sure you are connected to a stable network.

Even a full Wi-Fi or mobile network bar does not always guarantee a stable connection.

Your local network can experience slowdown depending on the situation, and in
the subway or crowded locations, you might be connected to an unstable
network.

Please always use a strong network or a stable 3G/4G connection
when playing the game.

Aside from your connection, the game can become unstable due to insufficient
memory on your device.
In such cases, please free up some memory by shutting down any other apps that
may be running in the background.

If you're still encountering problems, please contact the Support team for help.