lewis said:
if VATS stop the time it must be a way to make the player to move when uses it, adding the same points to shot but in this case to move, them keep the time stoped for the player and let the npc make limited moves and shot, once their done them the player may move and shot again (something like simulating a turn-based system)
No, because other people don't get extra movement in VATS. If I understand correctly what you're saying, which is doubtful.
Look, when a player uses VATS, nothing changes for the NPCs. They move at the same speed and they take the same actions. Conversely, when an NPC uses VATS a PC shouldn't be able to notice.