UE4 -> UE5 upgrade: Cooked sound WAVs are 2-3x bigger now

We’re upgrading our project, and I noticed that our cooked audio assets, the UBULK files, are 2-3x bigger now. I played around with “Compression Quality Modifier”, and even setting it to 0.1 still kept the files a bit larger than UE4.26. This seems rather odd…? We never had to use this modifier on Windows before…