I think there is a misconception here as if the louder one sounds better and closer to master tape but “generally” louder one is more compressed and dynamics are lost. As
@kodomo said earlier old pressings “usually” have more compression compared to new audiophile pressings.
On the other hand most new pressings are crap but there are some very good ones sound better in every way. I think London Super Analog Disc is an example for former than latter which doesn’t tell the whole reissue story.
Sterling mastered RCA Living Stereo and Acoustech mastered double 45rpm titles are better than originals.
jazz titles from Speakers Corner are not good but classical titles are great especially Deccas. Matrix numbers on dead wax matches old pressings’. They most probably used old metal parts for new reissues but I still prefer those titles to be cut from original master tape at Sterling Sound.