Quote Originally Posted by boys from the dwarf
o.k. ive re-watched the film and i think the weapon is why he goes so quickly. noticed in one of the motor bike fights VS cloud he punches and theres a small energy burst exactly like the blue stuff when loz uses that speed so im not sure how but im pretty sure the weapon is the cause after all even though they are remnants of sephiroth why cant sephiroth do everything they can? its because he doesnt have the same weapon. watch the film closely and carefullt and i think youll find im right.
Sephiroth can fly - and jump - really fast, as well as delivering immensely quick sword blows. In his own way, he's faster and more dextrous than his remnants.

Loz's blue blur is virtually identical to the gold blur that Cloud becomes during the new Omnislash move, suggesting some similarity there. A latent Jenova ability that comes to the fore in each character in a different way, perhaps?
Jenova-DEATH used Time magic in the original game, so perhaps Loz has that trait.
Anyway, I just don't see how some electrified pistons could make a person move supernaturally fast... unless Materia were involved, perhaps.