Just a view from another perspective.
Where some handgunners make a mistake, is how they "mount" their scope. No, I'm not talking about how it is attached, but how it is brought to bear on the target.
If you point the weapon in the general direction of the target, look through the scope, then try to find the target, it can be difficult. Also, sometime during this process, most will close one eye, making it all the more difficult.
It is much easier to look at the target with both eyes open, them move the scope into alignment between your dominant eye and the target. I find this is much faster, and alignment is almost automatic. At this point, you can close one eye, if you must. I don't. Of course, this presupposes that eve relief is correct.
You might try this, to see if it helps your situation. It would have never ocurred to me to explain this, but a friend had this same problem. After I explained it to him, he hasn't had any problems at all.