No stress about the answer though, iv'e changed direction on my portfolio going back to basics without overdoing it with code i cant handle haha!
But if anyone knows it would be interesting to know if there's a way to have a responsive fullscreen slider that works for both desktop and mobile . A workaround could probably be to add a “Browser Height for Row Height” add some images that will work both horizontally as well as in portrait mode but thats not super accurate.
Thanks and have a great day!
Daniel.