Quite simply, the sound chips have a certain force, or rather ohm (resistance), which they have to overcome. In your case it is now so that it is quieter, which means the sound chip is no longer as full of power or simply worse. There are also headsets that have e.g. 250 ohm then your sound chip must also be able to output this otherwise it is very quiet even if you have it at full volume. hope I could help you
Try changing the audio settings so that your headset is the master and not your computer.
If that doesn't work, try downloading an AudioConfig from Kraken and it should work.
Hi. I use the headset on the PC. I use the adapter cable supplied which separates the microphone from the audio. I then connect this to the pink and green jack socket on the PC. http://press.harlander.com/wp-content/uploads/2021/09/audio-anschl%C3%BCsse-klassisch.jpg