I think you might have better success if you server side render those sliders and they would pair up easier with the data, but I am not sure on that. Seems to me that you'll have an easier time building the table with sliders on the server- without the use of ui.output_data_frame- than rendering and then updating with JS.
Might be time for a new topic that is focused on that end goal because I just don't know if there is a nice way to reference those table elements from JS and get them matched up.