Match your sensitivity in CS:GO and desktop for better performance with training games (like aim400kg.ru, aimbooster.com, missionred etc.)
Calculations are based on orthographic projection, so Visual Sensitivty Ratio is different for different angles. - small rotation angles are used for precise aiming - big angles are used for flickshots
Compare FOV:
Vertical FOV is the same for different resolutions
How FOV works:
Due to projection of 3D world to 2D screen, objects that closer to sides are wider
At the center:
Red box at the center of the screen takes 150px
At the side:
Same red box, but at the side, now takes 330px. Player didn't move, just rotated his view
Windows Pointer Speed:
HKEY_CURRENT_USER\Control Panel\Mouse\MouseSensitivity
String variable, values: 1...20