The double dose of electric shock is certainly enough to take their target down, ducking lower just to catch that body and swing it up over his shoulder with an ease that doesn't seem at all fitting for his size. The fact that he does it one-armed doesn't help.

"Right, the Other Realm." Sasuke pauses visibly just by the door, trying to peer inside without seeming too obvious about it... and just giving that poor vampire another quick jolt when he groans and twitches.

"It'll be my first time in that place." Which explains his hesitance.