This command can be used to change the speed the flycam mode camera moves at (slow it down or speed it up).
setufocamspeedmult [speed]
| Speed | The speed you wish to set for fly camera mode. The default speed is 20. |
SetUfoCamSpeedMult 2
The above command would double the speed you move at in flycam mode.
SetUfoCamSpeedMult 0.5
This command would half the speed you move at whilst in flycam mode.