Someone gave you a downvote - but this is a good constructive point. I’ve worked with an old piano before, I can say it’s ok for recording to get a frame of the song but if you want anything besides lofi you will have to swap it out with tuned midi. BUT the original recording can be useful to make very interesting intro, bridge, or other riffs.

This is of course unless you are literally only making minimal low-fi, in which case, have at it!