1. Extract ProConfigVol4-1.41 folder wherever you like
2. Run "Win8_pluginfix.reg" in the "Win8-10pluginfix" Folder
3. Disable Vertical Sync in your graphic card options menu(check the settings.png image in the zip file)
4. Fire up Tribes.exe and set all of your preferred binds in the options menu.

Settings.png Info:
These are the settings I use in my tribes driver profile.
The most important is "Vertical sync - Off".
Vsync causes mouse input lag in Starsiege: Tribes. 
The second most important is "Anisotropic filtering - 16x.
Anisotropic filtering will sharpen up this old game quite a bit.
The rest of the settings are optional and not necessary.

Other Info:
This config comes with all of my preferred binds. You can change any bind you like in the options page in the game.
This is how I play tribes, right down to the mouse sense.

I have included some scripts that will let you adjust the game to your liking:
NetSetChange
FoVChanger
Sensitivity

Under the global binds menu in the options page, you will find binds that will change your
netset settings, your fov, and your mouse sense. All of these options will save after you close the game.