So like, I don't know why Audacity has been making any stereo mix recordings super bass-y, but for the part in particular that's atrocious, it's just. actually like that.
The song is "Cyberia lyr3" by Sewerslvt while the hitsounds are metal drums taken from RichaadEB's "The World Revolving" cover beatmap. I kinda forgot that whoever put the beatmap together for that song decided to boost the volume of the large dons so while regular dons and kas are normal, the large ones are... very loud.
This isn't me playing the song, btw. I had the game set to auto so I could pull my earbuds out. :)