If the music volume of iOS QQ is low when playing games, you can try the following methods: 1. Make sure the volume is turned to the maximum. In the game, turn on iOS QQ music and make sure the volume is turned to the maximum. 2. Adjust the volume of the game. Some games may ignore the volume setting of iOS system, so you can try to adjust the volume level in the game to increase the volume. 3. Close other audio applications When multiple audio applications are running at the same time, they may interfere with each other, resulting in lower volume or mute. Try closing other audio applications, such as the music player on your phone, to increase the volume of iOS QQ music. 4. Check headphones or speakers If you use external headphones or speakers, please check whether they are properly connected to the iOS device and make sure that the volume is turned to the maximum. 5. Update the iOS QQ music application If none of the above methods can solve the problem, please try to update the iOS QQ music application for better performance and stability.