Lazy load/preloader on data

Is there a simple way to apply some kind of lazy load of preloader to regions containing data? I don’t want to apply a preloader to the entire page.

I seem to always get “Invalid Number” flash up for a few seconds before the data has loaded, eg…

2022-12-3_08-55-592560×1272 351 KB

On fast connections it’s not much of an issue but it’s very apparent on slower connections and just doesn’t look great.

Thanks for any help as always.