Yeah, I'm not sure why they even placed that early into the game. It just serves to make maneuvering Nathan more cumbersome because of how integrated running is, and how butt-slow Nathan is normally.
I guess besides that, I didn't really have issue with the physics. It mostly just the level design that made things a chore to move through a lot of the time: Abyss Stairway, Eternal Corridor (well it wasn't a chore but it was just plain boring), etc.