00:04:099 - 00:05:566 - Not really a big issue, but I think that music does not change so much to do such change in SV (1.0x -> 0.7x), since what you follow with 1.0x SV is only snares with drums, but overall intense is not really changed, so it's will be better if you nerf this a bit. Just for example, use the first SV as 0.8x for better representation.
00:59:696 (5) - 01:04:914 (5) - you could make this a circle to make another 1/1 gap like 01:01:816 01:02:468
01:24:642 (4,1) - rhythm structure could be improving, you might ctrl g the pattern for following better vocals on the section
01:24:805 (1,2) - these are very close objects and they would be masked as 1/2 rhythm, doing this change could bring into make a 1/1 stack with circle and slider
01:25:294 (2) - this is out of place, nothing in music here so it just does more unnecessarily density to rhythm
01:37:686 (7,8) - you could stack them since the sound here is minimum, making spacing looks very annoying
01:37:686 (7) - Remove this circle? There is no sound and making this for a Hard diff might be looks like overmap, which is not really recommended to use. Also, I think this will make some gap in 1/1 that will show better the transition to kiai.
02:18:283 (4) - 02:28:718 (4) - why these notes are passive but 02:13:066 (1) - 02:23:501 (1) - not? Try to make them all actively hittable so to have more sense on playbase
02:29:044 (1,2,3) - this pattern uses a super high spacing comparing with 02:18:609 (1,2,3) - 02:30:675 (3,4) - , consider to decrease their spacing
same as 02:53:827 (3,4) - 02:57:088 (4,1) -
02:32:631 (1,2,3,4,5,6,1) - Since it's the most intense vocals here, I think you can give more spacing for them? Vocals here is like more high-pitched, and would be better if you also show it with more spacing.
02:43:066 (1,2,1) - maybe overlap these using DS since diff spike, and 02:35:403 (1,2) - you used similar spacing with 1/2 rhythm so it could confuse
02:43:066 (1,2,1,2,3,4,5) - This chain might be feels pretty complex with using such streams after reverses in 1/4, if you really wanna leave it as now, just make 02:43:392 (2) - this as 1/2 slider and this would be ok. (or you could make 1 time reverse for these 1/4 reverse sliders which would works good too)
02:43:718 (1,2,3,4,5) - streams in 184bpm look quite strong for the diff, you would remove this note 02:43:800 (2) - to make the next pattern a triple instead
02:53:827 (3,4) - Spacing is extremely huge here with returning-back flow. In the current way a new players probably would have some suffer to hit this, so try to do something like this: