00:21:673 (2,3,4,1,2) - there are too many circles in once, i think you can follow more the vocals making some more 1/1 slider like 00:22:026 (3,4) -
00:30:496 (3,1) - you are breacking the visual spacing here. looking at these two objects it looks like they have the same 1/1 rhythm consistency, If you wanna make a lil gap between them it's strongly suggested to follow what distance snap give you
example, as you done right here 00:44:261 (1,2) -