If you feel like your opponents are suddenly easier or you can't get as high a score as you did in the past, it's possible your race settings were reset and you're racing at 50cc.
Your race settings may be reset in the following situations.
・When the app is reinstalled on your device
・When your device's cache is cleared
・When data fails to load during the app's launch
Follow these steps to check your race cc settings.
1. Choose a cup/course
2. Choose a driver, kart, and glider
3. Tap X cc on the "Ready to race!" screen
4. Choose the desired cc on the "Choose a Speed" screen
"NEW" is displayed on drivers, karts, and gliders.
My control settings were reset.