I'm not sure if the Kings F's are just slow or the Jackets D are better (pretty sure it's a bit of both).
Jackets best D might be Prout this game. I've noticed every other D either get burned or bad passing. JJ left Kopi open on the first goal, Jones and Werenski have both let guys get around them, and Nuti and Savard with some bad passes at times. Really good D overall, just saying Prout has been good.