I am also experiencing problems with EyeX InfiniteScreen, Elite Dangerous and the X52Pro.
For me there does seem to be a connection between ISE / vJoy / E:D as I do get screen movement when I move my gave, however the view swings wildly left and right, up and down with just small eye movements, which very quickly induces nausea.
The wierd thing is – straight out of the box everything seemed to work fine, but then next day after no other changes than shutting the computer down one day and then restarting it the next.