Where can I modify the default script to make a scene go into slow motion?

So in my game, I have this scene where I want everything to go into slow motion. The game is played only on single-player, and the player is locked into first person when the scene begins. Basically, I want stuff to happen slowly. I can affect the player's speed by lowering his WalkSpeed, and disable jumping with the JumpPower property. My problem is, how to make the player look around in slow motion. Like, when the mouse is moved, it slowly moves the camera to where it's moving. So if someone were to record the final result, it would look like if the person recorded normal Roblox and just slowed it down in a graphic editor. I'm pretty sure that this can be done through modifying the default CameraScript that Roblox inserts into each player, but I'm not sure if and how to do it.