Transition while shrinking is not smooth

Hi, sorry for the delay. I’m sure you can imagine things are pretty crazy right now.

I just checked your site and the transition is working just fine for me. I checked on 3 devices. Maybe try clearing your browser cache.
Let me know if that helps.

OK, then let me reformulate:
I need the transition to be smoother
How could I slow down the transition speed?
Nu matter what I do the transition is not smooth at all

Try this CSS code

.she-header, .she-header-transparent-yes {
  -webkit-transition: all 1s ease-in-out !important;
  -moz-transition: all 1s ease-in-out !important;
  -ms-transition: all 1s ease-in-out !important;
  -o-transition: all 1s ease-in-out !important;
  transition: all 1s ease-in-out !important;
}

Change 1s to 1.5s or however many seconds you want the transition to last.
Let me know if this works for you.