00:37:032 (1,2,3,4) - you could tilt this pattern slightly to keep it symetrical but off-grid. https://osu.ppy.sh/ss/19256124/9342
00:37:032 (1,2) - you could also move these sliders away from the other pair to make the same visual spacing between all sliders. https://osu.ppy.sh/ss/19256130/55aa https://osu.ppy.sh/ss/19256131/736e
01:21:032 (1,1) - this spacing is very similar to what you have between circles during the stream. You could move the slider away so it's not overlapping with any circle to slightly improve visuals. It should also give a nice snappy feedback to the player when hitting the beginning of the stream.
02:16:697 (1) - this one is better due to slight snap at the end (from slider to stream). Maybe creating similar snap for the previously mentioned slider could also work. Then both of them would fit each other more.
01:37:864 (4,5,6,7) - this pattern, even when it's accurate with the song, feels out of place. You could simplify it and map it just like you did here 02:33:530 (4,5,6,7). On 100% playback rate it sounds accurate so I recommend prioritizing visuals and playability here over actual rhythm of the drums, especially when it's the only section with a rhythm like that.
05:05:694 (1) - you could make some of those circular sections even more circular by using circles and blanketing the slider over them. https://osu.ppy.sh/ss/19256169/0362 https://osu.ppy.sh/ss/19256166/d62d https://osu.ppy.sh/ss/19256168/7a7d