"I don't accept that improvement has stopped coming towards me. Even if it will stop coming towards me, it's because improvement never even came to me anymore, while I always practiced at my best. That's not a stagnation that is supposed to happen, only fools would think that way."
The map has an unfinished hard, so if you decide to mod it, you can refrain from modding the hard for now. Other diffs are finished and fully hitsounded. The song is typical high bpm vocaloid song so I think that it kinda fits your requirements.