S2 rollback

Can we have a S2 app complete rollback? At first, S2 was working for me just fine when the Upgrade happened, but then it was getting worst and worst everytime, now it works really bad, Music plays for 7 seconds or less and then skips the song and plays the 7 seconds or less and ends stopping at the third attempt… never had issues like this with the sonos apps, S1 works much better than S2, I have both, my S2 speakers are wired, so I don’t know what is going on… so, please!! Can we have the S2 complete Rollback???