Welcome to the Shopify community!
Please share your site URL,
So I will check and provide a solution here.
If you want to add/show different slideshow image for mobile devices.You have to create mobile slideshow from code.
Thanks for post
it can be cone custom code
I need your store login details. Yes, I know your login details are confidential. For this second option, I have added your store to my Shopify partner account so I will check your code easily and manage what you think about it?
can you please add on staff so i will check and easy to fix