I noticed of late, all my non digital audio was very, very low.
I have my audio set to fixed since I have a receiver. Apparently, fixed audio only seems to work for digital files. So what you need to do is disable fixed audit, then set the volume to max and then put back fixed audio.
That seemed to solve a ton of minor problems I was experiencing
Edit : low not slow
What do you mean by "digital files"? All files are digital.