When the slider loads, it displays the slides vertically for a fraction of a second, and then how will it load normally (horizontally)?

Question

JavaScript

The slider on the desktop when it loads displays the slides vertically for a fraction of a second, and then, as it loads normally, it displays without jambs. but on the mobile version there are 2 seconds and it is very noticeable. How can I fix this site ?

Answer 1

How to optimize a jumping slider?