I seem to be much more accurate with iron sights.
Sounds absurd at first, but perhaps there is an explanation.
First of all, we don't know what your standard of accuracy is. The only word is "much", so let's say your group is 2 times larger with the dot. We still don't know if you're gone from 2 inch at 25 yards to 4 inch or from 6 inch to 12 inch. The first case is probably just dot chasing.
Because it's easier to see the "wobble" with the dot, some people victimize their progressive trigger squeeze. They try to catch the dot on the target instead. Don't do that. Remember that your irons wander just the same, it's just easier to see the dot. So, focus on the trigger control instead.
Keep in mind what
chicharrones said: if you're used to focusing at the front sight, don't. You need to look through the sight and at the target.[1]
If your standard is more like the 2nd case, then t's possible that your optic is not installed right and wobbles or the gun is otherwise inaccurate. I'd give it to someone else, preferably a younger person, to run a test.
Finally, I don't have actual trigger time on Romeo, but I know that some self-defense sights have oversized dots on purpose. It allows dots to be not as bright, which makes them easier on the eyes in the dark. Maybe you need a sight that projects a triangle with a sharp tip.
[1] Some people say that dot is "focused on infinity". What it means is that the light reflects off the whole surface of the lens, and exiting rays are parallel. The actual light beam is as large as the sight! But your eye re-focuses it and converts it into the dot that the rest of your brain sees. That's why it's also said "there is no dot". Therefore, if you subconsciously focus on the front sight, the dot will become blurry. Unfortunately, the same thing happens if you are a little nearsighted, but then you cannot make your eye focus "on infinity". The only fix is a set of prescription shooting glasses.