I thought that you updated the profile using the new advanced settings. But since you didn’t do this, in order to use the old settings (before patch 10.40), you need to enable the "legacy controls" item in the additional settings.
What you wrote above (10 insane) includes a new control system with a very strong aiming, which is not controlled at all.
I always play on the recommended settings. I have a Mouse Logeitech G102 (8000 DPI max and 500hz polling rate). I play on average sensitivity multiplied by 1.5 in the profile settings.
But that is not the problem.
The problem is that the profile has not been updated since the fifth or sixth season of the game, when Epic Games changed the aiming system in each new season. I often play Fortnite, I feel it.
Unfortunately, I cannot play Fortnite with official keyboard and mouse support, as my keyboard stops working after a while. PS4 turns it off. You need to disconnect the keyboard from USB and reconnect directly during the battle. It is not comfortable. On a PC, this keyboard works just fine. This is a PS4 issue.
Therefore, it remains to play through the emulator. But let's see what happens with your competitors. They have rewritten their Fortnite profile several times over the past seasons and will do it again now with the release of new settings.
You can read it here:
https://community.xim.tech/index.php?topic=81568.0They even have a SEPARATE PROFILE for PvE Fortnite Save the World, because there is different shooting mechanics.
Fortnite is a very popular game, it is played by millions of people. If you find it difficult every 2 months to issue a profile update for old CrossHair, give the ability to change the profile. Not only change the sensitivity and XY ratio with ballistic curves, but also add Simulated Analog Behavior (SAB) to the Custom Profile, dead zone, etc.
Try moving the mouse to the left on the old profile of the game, and then sharply to the right. You will understand what I mean. If you enable the linear ballistic curve in the advanced settings and enable the Overwatch profile, the movements will be better than on the Fortnite profile with 10 insane values, but I can not play with the Overwatch profile, since there is no Simulated Analog Behavior (SAB) there.
I hope this situation can be somehow corrected if you want to sell as much CrossHair as they sell XIM APEX.