Gallery slideshow: content timing offset

Hi there, Im trying to offset the timing that my gallery content slides into frame. I want to be able to have any given image slide in and then its respective text content to slide in slightly afterwards. Here is an example of what I am trying to achieve:

https://www.academyfilms.com

Many thanks,

Hi MadaRekcorc,

When slide the images, I can see caption and description  text is moving in slowly already, did you get it done?