Is there a difference between these two?

So, I have read somewhere that the number of moving objects on the screen has a serious impact to the app's performance.

So, I have this map with levels in my game, which you drag left or right in order to slide it. Because it is very laggy, I have come up with an idea of scrolling the screen left-right, instead of moving the whole map together with the bunch of sprites pinned on it.

The question is: Is there any difference, regarding the performance, between moving the whole map in order to slide it, and only scrolling the screen and moving the UI?

Yes. Changing the positions of a lot of objects every tick probably utilizes significantly more resources than just changing the position of the viewport (or a single invisible helper sprite with the "scroll to" behaviour).