Might want your morning coffee.
Anyways, as said... if they wanted to speed up the reload animations they'd just do that, there's no way in hell that DE would make a whole new set of faster reload animations, let alone for the sake of an optional toggle (that wouldn't be an "option" since it gives a direct gameplay advantage)
I'm all for left/right handed as a cosmetic toggle, but all it would be is mirrored animations.