Slowing it down to Waltz speed would definitely be a good option ;)
(pssst - if you like rhythm games and haven't played ^ Phantom Waltz ^ you should definitely check it out!)
If we keep working on it we'll probably slow down the pacing for the easy difficulty. We instead limited how many squares could be stabbed at a time and based on the feedback we definitely had some other opportunities.
Thank you for the wonderful feedback!