Finn was pissed in the lightsaber duel as well so I don’t find it to be to unbelievable that he got a lucky hit in before Kylo demolished him.

Couldn’t it also be that there is sort of an unwritten rule amongst Jedi/Sith or whatever that when someone pulls out a lightsaber that the honorable thing to do is duel them? Yeah Kylo could have used the force to take Finn out too but then he pulled out the saber so it was on? Couldn’t Vader have just used his mastery of the force against Luke in Bespin… why bother dueling him with a lightsaber at all?