The animation studio (likely uncredited due to industry norms, but identifiable by its signature "soft-shading" technique) utilized a technique rarely seen in this budget tier: 1.5x key animation interpolation . Instead of the standard 3-4 unique drawings per second, the animators produced 8-10 key frames per second for action sequences.
This choice divides purists (who want 1:1 translation) but is praised by critics looking for a "better" adult narrative. It feels less like a caricature and more like a drama. seiyoku tsuyotsuyo the animation better