I'm not sure I can do this kind of 1/2 rhythms, since this is an easy diff', made for very new players, that would just be too fast for them. Also the ranking criteria talks about it, you don't have to strictly follow those rules, but it says "Note density should consist of mostly 1/1, 2/1, or slower rhythms" (https://osu.ppy.sh/wiki/en/Ranking_Criteria/osu!#-easy), which is what i've done already.
pretty sure its totally fine for this bpm to add 1/2 to make rhythm more dense
as a reference you can check https://osu.ppy.sh/beatmapsets/1096383#osu/2291160 or https://osu.ppy.sh/beatmapsets/1364732#osu/2823270
also the rc you linked works for ~180 bpm, lower bpm low diffs can use such rhythms https://osu.ppy.sh/wiki/en/Ranking_Criteria/Scaling_BPM