I remember when I first played Elite Dangerous the motions made me motion sick during intense combat. Fortunately my eyes and brain adapted so I could play this wonderful game.
As for the shaking of the ships while in normal space, especially when you hit the booster, I think some shaking is just inevitable.
But for the shaking caused by low-end PC/settings too high, I found these setting make the most difference for me (especially in SC):
- Turn down or turn off shadows
- Turn down or turn off FX Quality
- Turn down resolution
- Turn down or turn off Anti-aliasing
All the options effect performance in some way, but the four options listed above made the most noticeable changes for me.
I hope you're able to get things straightened out so you can enjoy this awesome game. I dunno why some folks think eye strain is made up... but best luck to you Killerhurtz (love the name btw, had to give you rep for that

).