Page white while loading, until fully loaded

Hello everyone,
Really need help with this. I can’t for the life of me figure out why when loading a page on, it’s showing a white “slate” that covers the entire page until everything on the page loads. When it’s done, it disappears instantly. There are no interactions and no custom code set to do this.

Any ideas? Thanks!

Read-only link here

You are going to have to debug this using the performance panel in dev tools. Looks like CPU time to me. Lottie counts as animations BTW.

I looked at it with dev tools but can’t see anything out of place. I tried loading other pages that don’t have Lottie or large image files, and it keeps happening.

Figured it out. It was Google Optimize. Removed it and it works great now.