Not that this necessarily speaks to your concern exactly, but if you’re using any kind of performance tool like WP Rocket or Flying Press, then you’re best to disable the Bricks lazy loading function anyways in favour of the performance tools implementation. Just adding this for anyone who comes across this in the future using performance improvement plugins.
It would depend on the plugin of course but I believe Flying Press does a better job of it personally. Flying Press supports background lazy loading too.