The game's download progress usually depends on the availability of your network signal, as well as the data limit set by your mobile carrier.
You can improve your download progress by trying any of the following:
- Switch to a better Internet connection (3G, 4G LTE, or Wi-Fi).
- Close all other running/background applications.
- Change the time zone of your device and try reconnecting the game again.
- Restart your device and relaunch the application.
If you still can't complete your download, please check if your mobile carrier has set a maximum speed or any similar limitations to your connection, and contact them regarding this matter.