What you can do is to create two RGs. One with 10 rows and pagination and another with a full list. Put one above the other. Both invisible during page load.
In the page load, do a search to see the amount of items. If the amount is more then 10, show the RG with pagination. If not, show the RG with full list…
You can check the option to colapse both if invisible. That should work fine 