Well, we have this features in our pro theme where you can disable the slider and display rooms as many as you need. Even we have a feature to display columns limit in one row.
We fixed arrow issue on our git repo so please download our theme from there and check it once. We will release it soon.
Info:- Regarding room count please make sure your count and your created room page templates are almost equal. for example, you created room template page as 4 and you added count limit to 8 then it won’t work because of room pages only 4 found.