Okay so this person is really toxic and I'm not defending any of that but this game DOES have serious audio delay problems
At least for me, the audio is about 100ms behind the video, meaning you need to hit notes a tenth of a second before hearing them. And it seems like it's not just me—the trailer video for the Steam version shows a similar offset between the audio and video.
To check this wasn't just an encoding issue, I made two separate recordings: one of Beat Banger, and one of Taiko no Tatsujin (via TJAplayer3).
Sure enough, the Taiko footage shows no noticeable offset between the audio and video, while the Beat Banger footage shows a consistent audio lag. This is especially noticeable on failed notes, as the beat pretty clearly lands outside the timing window. In fact, the beat consistently lands on the exact same frame the timing window ends? Which means if I hit the notes actually on-time by ear, every single note would either be a Miss or a Good.
And I don't think this is just a me issue? I'm playing on wired speakers, and games like Taiko play just fine. I even unplugged the speakers from my monitor passthrough and plugged them directly into my laptop to test if it was an issue with DisplayPort, but got the same results that way. I feel pretty confident in calling this an issue on the game's end.
So like Ron's a complete asshat but this game does have serious delay issues