As a recovering "rusher" I'll say that I found utility in this mode of existence, in that it allowed me to avoid having to face reality. It touched on not knowing what to prioritize. It took loss, illness, ageing, and becoming a parent to transcend it and understand the paradoxical and counter-intuitive benefits of slowing down and being present. And though it lets in the beauty of existence, it also lets in the awareness of its fragility and temporal qualities. You face one, you must face the other. And that can be frighteningly overwhelming. For some, it's something they simply can't rush.
And I'll add, always being in a hurry was a symptom of wanting to do everything; stemming from my deep love of life and what it has to offer. It was both scarring and liberating to realize I can't do it all. And in some inexplicable, cosmic reversal, by letting go, it felt like nothing was being left undone.