Hi Rui!
What are those files called? The only file inside the JS folder on my FTP that I have made changes to is:
/js/functions.js
slideshowSpeed: 6000,
TO:
slideshowSpeed: 8000,
(at 4 places in the file)
I did replace my functions.js with the original from the Neighborhood 1.9 just now. No change with the slider.
?
<3