Unfortunately, dealing with bad recordings is all part of this hobby, so it seems. That's the major downside with my bundles - it's quite stark with imperfections.Poor recordings can indeed be a challenge. I listen to recordings from around 1900 (great operatic singers and pianists mostly) to the present day, and my system has to be able to handle reproducing all as well as possible. My current system is the best I have had for this - it sounds totally immersive with the best quality recordings without making poor recordings (including early digital and 90s brick-walled ones) unbearable to listen to. A few set-ups over the years have fallen at the first hurdle - as soon as I realise I'm only playing the well recorded stuff and actively steering away from everything else, it goes.
I've come across people who seek only music which makes their system sound good instead of seeking a system which makes all music sound enjoyable. It's partly why hi-fi shows aren't the best place to judge anything, because nearly every exhibitor plays beautifully recorded music that any decent system could make sound good.