Lazy loading compatibility with 5.5 Version

FInally WordPress 5.5 is doing lazy loading natively but cant manage to make it work with my php function:

add_action('genesis_before_footer', 'custom_related_posts');
function custom_related_posts() {
	?>   
		<div class="clearfix clearfix-treding"></div>
		<div class="custom-related-posts">
				<div class="yarpp-related">
					<?php $args = array(
						'header' => 'Tendencias', 
						'header_start' => '<div style="text-align:center"><h3 id="tendencias" class="trending-title"><i class="icon-trending"> </i>',
						'header_end' => '</h3></div>'	,
						'wpp_start' => '<div class="yarpp-grids">',
						'wpp_end' => '</div>',
						'post_html' => '<div class="yarpp-thumbnail">{thumb} <div class="desc"><span>{title}</span></div></div>',
						'post_type' => 'post',
						'limit' => 6,
						'range' => 'custom',
						'time_quantity' => 5,
						'time_unit' => 'day',
						'freshness' => 1,
						'thumbnail_width' => 520,
						'thumbnail_height' => 272,
					);
					wpp_get_mostpopular( $args );
					?>
				</div>
		</div>
	<?php
}

Any idea how to get it working?