Hello,

Try to add the following PHP code snippet to the child theme functions.php file to do this

add_action(
	'woodmart_after_body_open',
	function() {
		woodmart_lazy_loading_deinit( true );
	}
);
add_action(
	'woodmart_after_header',
	function() {
		woodmart_lazy_loading_init();
	}
);

Regards