Hi @jamesgreen101 and thanks for getting in touch. Sorry to hear you are not getting the optimal experience you had hope for with Elite Dangerous and the EyeX.
There are indeed some settings that can be configured using the infinite screen extension, now called Tobii Game Hub including adjusting the various sensitivities for movements.
I found for you a video made by another user who explains in depth how best to configure the EyeX for the E:D which you can view @
Please check it out and let us know how you get on.