re: .

Kylo's thing is he thinks he's all powerful because he doesn't really come in conflict with other force users. Truth is that even someone mildly force sensitive is going to seem like a super hero when compared to someone that's not. He does a lot of showboating to seem all powerful and strike fear into his subordinates and enemies. It's like person who is average at basketball going to play a pick up game in a little fishing village in India against people who have never even heard of the sport. Just because you can dribble between your legs and do a reverse layup you are going to look like a super star to them when the truth is if you tried pull those moves off against someone who is actually good, you would get completely embarrassed.

Stopping the blaster bolt is just showboating. It's almost a waste of force concentration when you could really just dodge it, block it, or absorb it into your hand like Vader does in Empire Stikes Back. As for the mind reading thing, Vader reads Luke's mind in Return of the Jedi to discover Leia is his sister and all he had to do was be in the same room while Luke was thinking about it. Kylo has to strap someone into a chair, stick his hand out and concentrate all of his will in order to do it.

In my opinion Kylo is just a average force user, he is just happens to be the only living person we know of (other than Luke and Snoke) that seem to be both force sensitive and received some kind of training.