Is there a way to enhance the audio of the Live Concerts

not sure if this will be offtopic or not but i am really curious if there’s a easy way to enhance audio quality some guy on youtube did the same for pink pop 2003 remastered otherwise i would not mind making the audio quality more like pink pop… but i already tried to convert to flac but not so much different… i mean i don’t mind the way they are but i thought i could do something special

if you can help thank you!