Website loads extraordinarily slowly - white screen preloader?

Hi,

For some reason, my website loads extraordinarily slowly. In the editor, the website behaves and loads as it should, but on the published version a white screen is shown a couple of seconds before the actual website shows. You can scroll the website while the white screen is showing and when the actual website shows, every element of it is fully loaded.

Is there a preloader on my site? If so, how do I remove it? Is there a wrong setting turned on? Does it have to do with an integration outside of webflow? I would love some help in figuring out why this happens, thank you!

Website link: https://www.westmedia.dk/

Read only link: https://preview.webflow.com/preview/westmedia?utm_medium=preview_link&utm_source=dashboard&utm_content=westmedia&preview=faa58c215281f6aa62185217e02a0038&mode=preview

Hello.
When this is a template, ask the builders how to solve this problem. They will help you for sure.
It’s on every page. It seems to be some kind of preloading problem.