These changes will invert the Y axis of the mouse and make slower to move without need to press ctrl, it changes the command up and down on mouse and change the default in every direction (up, down, left and right) with the slower option. It changes the default with the sensitivity pressing ctrl (slow). If you want to move faster press ctrl and if you want even faster press shift.
With these changes the mouse movement is slow, with ctrl is medium speed and with shift high speed mouse movement.
It's pretty simple:
Go to the folder of steam or where the game's installed, look for the folder data and inside this folder there's another folder named CFG.
Edit the CFG file commands_en
search for the text "[Cmd80]"
you'll replace all the text [Cmd80] to [Cmd91]
with this text below:
[Cmd80]
Name=To_left
Ctxt=1,2,3,5,6,9
Key0=0x25,Rc,""
[Cmd81]
Name=To_left_fast
Ctxt=1,2,3,5,6,9
Key0=0x25,Rs,""
[Cmd82]
Name=To_left_slow
Ctxt=1,2,3,5,6,9
MnID=0x31000001
Key0=0x25,R,""
[Cmd83]
Name=To_right
Ctxt=1,2,3,5,6,9
Key0=0x27,Rc,""
Key1=0xb0,Rc,""
[Cmd84]
Name=To_right_fast
Ctxt=1,2,3,5,6,9
Key0=0x27,Rs,""
Key1=0xb0,Rs,""
[Cmd85]
Name=To_right_slow
Ctxt=1,2,3,5,6,9
MnID=0x31000003
Key0=0x27,R,""
Key1=0xb0,R,""
[Cmd86]
Name=To_up
Ctxt=1,2,3,5,6,9
Key0=0x28,Rc,""
Key1=0xb1,Rc,""
[Cmd87]
Name=To_up_fast
Ctxt=1,2,3,5,6,9
Key0=0x28,Rs,""
Key1=0xb1,Rs,""
[Cmd88]
Name=To_up_slow
Ctxt=1,2,3,5,6,9
MnID=0x31000004
Key0=0x28,R,""
Key1=0xb1,R,""
[Cmd89]
Name=To_down
Ctxt=1,2,3,5,6,9
Key0=0x26,Rc,""
[Cmd90]
Name=To_down_fast
Ctxt=1,2,3,5,6,9
Key0=0x26,Rs,""
[Cmd91]
Name=To_down_slow
Ctxt=1,2,3,5,6,9
MnID=0x31000002
Key0=0x26,R,""
