Apex sensitivity changes on it's own

@DarthValtrex  I mean if you never stop your life expectancy should drop dramatically so income won't be a problem. 😛

Go to C:/users/(your username or id number)/saved games/Respawn/Apex/local 

Open the settings.cfg with notepad and change the 

"mouse_sensitivity "0.7"
mouse_use_per_scope_sensitivity_scalars "1"
mouse_zoomed_sensitivity_scalar_0 "1..0"
mouse_zoomed_sensitivity_scalar_1 "0.8"
mouse_zoomed_sensitivity_scalar_2 "1.0"
mouse_zoomed_sensitivity_scalar_3 "1.0"
mouse_zoomed_sensitivity_scalar_4 "1.145000"
mouse_zoomed_sensitivity_scalar_5 "1.180000"
mouse_zoomed_sensitivity_scalar_6 "1.0"
mouse_zoomed_sensitivity_scalar_7 "1.0""

To the ones you like

example ""mouse_sensitivity "0.35"

Now save the file with either ctrl + s or just save over the cfg

Right click the file, properties and make it read only.

That should help with the issue.