To fix the delay in sound issue while playing game. Kindly follow the below-mentioned steps to resolve it:
1. If you meet the issue when you are using some specific applications, remove the application and download APPs from Google Play store and realme official store rather than other sources.
2. Close unused background applications.
3. Clear caches and do security scanning.
4. Delete the photos, music, messages, videos or other files that are no more needed.
5. Go to "Phone Manager" for optimization. You can also click "Full clean up" to clear memory files and cache junk to further free up storage space on your phone.
6. Reduce the use of dynamic wallpapers or small plug-ins with real-time refresh capabilities.
7. Add the respective Game apps to the game space(Open Game Space>>Tap on Add Manually>> Select the game application>> Tap on Balanced mode) For better performance.
Further, if the issue persists feel free to share it with us.