the upper part of the calculator is important if you want to retain the same rotation for hipfire/ movement and ads/ scope work for the zoomed in parts use 100% or 0% horizontal monitor distance depending on personal preference (recommend changing your siege ads to one of the give 0/100% values before converting to the other game to reach the highest possible level of uniformity )
(the siege calc works that way so that you can change 1 value in the ini file and then just play changing ingame numbers for the scope you use ,since siege only properly scales 1 scope at a time)
since those 2 games have a different fov type vdeg siege and horz sandstorm id recommend making sure that the actual fov numbers are identical
(or at least as close as possible)
*on another note let me just quickly add that that mouse speed of yours is insanely high, and will likely impact your performance down the line *
ill gladly assist you if you have further questions , (check the instructions below for more detail)