Problem to automatically update list of files on Finder
Open your dowload folder and sort by date added. Under the View Menu select show view options. This opens a pane like the one shown below.



You want to make sure your 1st 4 settings are identicle to the ones shown above in the top red rectangle and the "Show Columns"  settings has the "Data Added box checked.

Now when you download a file the name should appear almost immediately at the top of the window.