Images height issue on big screen having lot of space at bottom on macbook 15 how to fix

Hello I am using slick slider in shopify site It is working fine at norml window upto screen size 1920 but when I check in bigger screen it have lot of space at bottom I had tried everything to fix this but didn't get any solution please help me with this I am attaching the video of my issue..

https://www.awesomescreenshot.com/video/10545470?key=d224c81058b51e88752ae046daae40aa