I use a mini-joystick on my throttle, with two axes, to control the RDR CURSOR.
In the FCR, this works fine -- the slew rate is normal.
However, for other sensors (like HARM and the HSD), the slew rate is much too high when the movement is diagonal.
In other words: when moving the cursor along either single axis, it moves as intended. When movement is diagonal, it moves many times too fast.
This is shown in this short video. https://youtu.be/GwBM-HUgdBU
First, I move the cursor on the FCR. Speed is normal. Diagonal is a bit faster (probably sqrt(2) times faster). Next, I make the HSD SOI and slew the cursor there, using the exact same joystick. Now, the slew rate is normal when moving only on one axis, but much too high when moving diagonally.
This issue does not occur (on any sensor/page) when buttons are used to slew instead of joystick axes.
It seems to have been known for many years (https://forum.dcs.world/topic/281024-can-i-adjust-harm-page-curser-speeds) although it seems that the connection to diagonal movement was not made before. This really deserves a fix.