How to set up fast loading styles?

Question

1C-Bitrix

Good afternoon!
On the site I use the infinitecarousel3 slider in the detailed product card, when the page is opened, the incorrect display of styles briefly slips, that is, the photo is larger, but then everything falls into place. I tried to enable CSS optimization, added styles and js to the header, added to the component, did not bring any result, tell me what can be done so that they connect immediately and display correctly.
ResizeImageGet works for photos.

Answer 1

Hang slider initialization on onload of the whole page, not $(document).ready