It says Ftnt-hip-X1.2*
you are 3 fortnite versions behind, that is why your mouse movements are so bad
the xim fortnite configuration has been updated 3 times since then (due to ingame updates that required this)
the latest version is Ftnt-hip-X1.5
go into your global settings, press force library download and then create a new fortnite config (dont use your old one it reamins on 1.2)
the new one should say 1.5 then
alternatively check out this tutorial from 2:48 to 5:52 to learn how to update your fortnite game profile
https://community.xim.tech/index.php?topic=70612.0