I got one.
We can strafe, but it so slow, that noone os really using it. I suppose it is so slow on purpose, but...
If we walk forward and press shift, we run, maybe the same for strafing? When you strafe fast, this basically means you are bouncing on your legs, maybe animation will come to this once. There are monkeys on madagascar, which do it all the time ;P when on the ground.
So...
1. make strafing + shift a fast strafing
2. A key which we can set and which will switch from walk mode to run mode, and going with the analogy, while in the run mode, pressing shift + key for movng in given direction, we walk.
This sounds like a wishlish, but we had once the point 2. so it may be as well bug fix ;P