The starter does 2 things, trigger his transformation, which enhances his strength, and start his regen, and if he doesn’t have blood to regen, he can’t transform all the way because his chainsaws cut him too. He’s got such strength here because he’s partially transformed,
Boosted strength and speed in human form is normal in hybrids, but the extent of the boost depends on the devil that is fused with the host. For example, Denji is pretty much slightly above average in human form, but Quanxi is fast enough to be a blur in her human form.
Honestly I still couldn’t get why some people complained about the quality, I mean…..look at it, how can this be even better, maybe it’s not the top one but I don’t think it should be blamed 😢