Character movement/turn speed like archviz?

Is it possible to set player movement and turn/look speed in game so that it’s similar to all those gorgeous Archviz videos out there that use sequencer/matinee?

To elaborate I’m trying to set up a first person map walkthrough that shows all the player character interactions with all NPCs and the game environment but it’s got to be very slow and smooth.

What’s the best way of doing this?