The player run speed didn't seem to change and the weapons switch speed was very responsive to the input command. I can't confirm if any of the above was tweaked or changed, but they didn't feel awkward.
The models reacted well with the maps. However, there were some areas that caused the models to get "hooked". I would blame this on the map design, than the actual models. Of course, I am a player who loves to find ambush spots and I'm sure most places I tried to camp wasn't designed for that purpose.
When it came to running or evading vehicles (in Onslaught), there wasn't a problem with the models reacting too slow. They were responsive and quick enough to evade incoming vehicles or projectiles. In Assault, CTF and DM, I didn't think the models were too slow.