Help Fixing Strange Repeater Loading Behavior

I have a few pages where when loading the page the repeater for some reason extends far beyond the footer for around 30 seconds or so. The pagination also floats around.

In the image below the first highlighted red box is the pagination bar and the second is the page footer. During this period, I’m able to freely scroll up and down, but the page layout is just completely out of whack.

After a period, the page snaps into place and the page looks normal. How can I ensure that the page completely loads before expanding repeater, any thoughts on this?

I was previously advised to try to work with renderCycles, but this is now deprecated.

Many thanks.

Can anyone help???

Trying once more, any ideas???

Very weird, maybe set the repeater to show only onItemReady and have a blank placeholder box show on load in the meantime.

I suspect though this is just some weird glitch you might be able to fix by moving elements around inside the editor. Or maybe drag a blank box underneath your repeater so that the footer will be forced not to cover it?