Why does the audio quality of the Xiaomi Buds 5 become worse while playing games but normal while playing music?

This occurs because the earbuds and the phone use different Bluetooth connection profiles. A2DP (Advanced Audio Distribution Profile) is utilized for high-quality audio streaming, such as music playback. So when listening to music, the A2DP protocol is enabled. While HFP (Hands-Free Profile) is used for playing games. The transition between these profiles can sometimes cause the audio quality of the Xiaomi Buds 5 to become worse while playing games but normal while playing music. It is a normal phenomenon, the functionality of the earbuds remains unaffected. You can continue using them for playing games and playing music.

Does it help?

Yes