Not responsive on chrome

Hello,

After thought about the need for JS patch to be updated for D9 because classes have changed. I found that is a browser issue. On Firefox, images take the full width but on chrome I get a size in HTML like this:

views_slideshow_cycle_teaser_section 
   position: relative;
    width: 1600px;
    height: 487px;

For FF its:

width: 1894px;
max-width: 100%;
position: relative;
height: 574.7px;

HTML Architecture look like:
views_slideshow_cycle_main >> views_slideshow_cycle_teaser_section >> views_slideshow_cycle_slide
I also use a JS code to avoid size but with no effect. ( here https://www.drupal.org/project/views_slideshow/issues/1510526#comment-14...)
How to get similar behaviour for both browsers ?

Thanks