imo that's fine, it's just some typical drunk drummer on some random spots, don't add red lines since it will add complexity to the map's timing for no good reasons playability wise
got asked to check this, current timing seems fine for me as it seems intentionnal by the musician to do stuff like this occuring on 00:11:227 (1,1,1,1) -00:13:610 (1,1,1,1) - 00:15:998 (1,1,1,1) - etc...
it's called a "jitter" btw
the video looks like being cut largely. can u re-encode one?
https://i.imgur.com/GsZpDeT.png
as u see the credits are not showed entirely.