Built using Svelte-Kit and thusly using Svelte as frontend framework

The start page contains loads of images (svg) since all countries are listed by default. Has anyone created a solution where countries below the fold are lazily rendered?

I think the performance is acceptable (barely) as it is, but if I we're to optimize something it would be to not render invisible "country elements" on the start page.

And this was my first time using Svelte, so if anyone has any comments on the code regarding that you are more than welcome to slash me :)