After some complaints, I will try to lower the mixing a little bit, but since I want to modify audio files (they have almost no reviews), it's pretty hard for me to modify all tracks to a better mixing. I have to download my track, then go to mp3cut.net, then modify the volume. Sounds easy right?
Well, I have to download 190 tracks and despite changing the titles of 120 tracks first, this adds 70 tracks to my list! So, I don't know what's a desirable volume... Maybe -20%? Or -30%?