You definitely really have to enjoy replaying content when it comes to Hitman. It's all about planning your routes, performing new executions. I can see why you'd have trouble getting in to that.The latest Hitman trilogy....it took me three attempts to get through the first one because of the way the games are designed....replayability.
I never felt like I had truly finished a mission because of how many ways there are to do them....and that put me off.
Eventually I was able to just choose the way I wanted to complete the missions and move on and by the second game I was able to enjoy it first time through....looking forward to playing the third one at some point.
Sometimes it is fun to go guns blazing honestly. Obviously not how it is meant to be played, but they have so many cool weapons in the games.