Service is Great, App is Terrible

I love the service. 50,000 songs can be uploaded from my personal library (I have a lot of music) completely free. The problem is that even though the music is there it can take 10-30 seconds for a song to start, if it even does, and then it might freeze in the middle. More than once I have had to force quit the app and try again but then the app itself takes about 5 seconds to open. Its weirdly delayed. There isnt any way to edit the music tags in the app. You have to go online to manage your library.

Spacebouns about Google Play Music, v3.26.1007