Hardit's a rule to set the stack leniency to allow 1/2 objects to stack, so change that
it's also a rule to have hitsounds
overall, everything shouldn't be placed within the grid, it becomes monotonous when most of the angles are multiples of 90 degrees
00:10:709 (3) - new combo, then switch the new combos until 00:13:982 (1) - so then each combo starts on odd-numbered downbeats
00:26:800 (1) - change this into a circle; sliders probably shouldn't start on upbeats in this song
00:29:255 (3) - new combo; this one is getting too long
00:30:073 (6) - again with sliders on upbeats (after changing it to two circles, start a new combo on the circle that was the slider end
01:01:982 (1) - kinda random for this combo to be one object long and it feels weird how the subsequent combos are not on the beginning of measures because of that slider
01:10:163 (2) - this is a pretty big jump you're demanding
01:17:255 (1,2) - i think this should be a slider, then a circle
01:21:618 (5) - new combo
01:22:709 (9) - ^ + this jump might be a bit too big
01:23:800 (1,2,3,4,1,2,3,4) - these sliders feel out of place and boring
01:45:618 - At this section, don't randomly switch between near-touching spacing and medium-sized spacing
01:46:709 (1,2,3) - these sliders are pretty random and don't seem to belong to any distinguishable sounds, turn them to circles
01:54:618 (1) - slider on upbeat feels unfitting
01:59:800 (1,2,3) - it would be more fitting to use these kind of patterns with similar drum patterns
02:07:982 (1) - don't start a new combo here, the last one was too short
02:08:255 (2) - turn this into a circle, then make a slider after it with the subsequent sliders
02:18:073 (1,2,3,4,1,2) - seems like there's no sound here for these sliders
02:33:073 (6) - slider shouldn't go over a downbeat of a new measure; probably cut it short and put a circle on the new measure
02:36:891 (6) - you can put another slider after this one
in general, the mapping felt kind of random; there didn't seem like there was a clear reason for why some objects were sliders or why they were on upbeats, for example. listen to the song closely and try to match the shifts in intensity of the song in your map