Vagelis

You could add this to the function i gave you

$( ".wprr a.prev").html('<i class="fa fa-chevron-left"></i>');
$( ".wprr a.next").html('<i class="fa fa-chevron-right"></i>');

or you could add the font awesome icon using CSS :before and content like this

.wprr a.prev:before {
   font-family: FontAwesome;
   content: "\f105";
}

You can easily change the design with CSS
A good start would be :

#woorelatedproducts li.product {
    padding: 10px;
}
#woorelatedproducts h2.woocommerce-loop-product__title {
    min-height: 40px;
}

You can also use CSS to alter prev-next links

Ah i see you use multiple optimization plugins/caches.
You should test while all these are OFF.

Hello there,
thanks for using woo related products.

From what I see I understand that you want to increase related products carousel’s columns, you can easily increase from 3 to 4 using the function below ( as you already stated you ‘ll need to put this in your child theme function.php , if you are unfamiliar with PHP file editing please don’t do it. )

function v_woo_related_slider() { 
  if (is_product()) {?>
	<script>
	jQuery(document).ready(function($) {
	$("#woorelatedproducts").data('owlCarousel').destroy();
  	var owl = $("#woorelatedproducts");
	  owl.owlCarousel({
	      items : 4,
	      itemsDesktop : [1000,3],
	      itemsDesktopSmall : [900,3],
	      itemsTablet: [600,2],
	      autoPlay: 3500,
	      itemsMobile : false,
	  });
	  });
	</script> <?php 
	}
}
add_action( 'wp_footer', 'v_woo_related_slider' );

Glad you liked it, thanks for the review!

Hello, no sorry, I didn’t but will do tonight or tomorrow.
Send me an email and I will get back to you with the edited version of the plugin.

Hello, I just checked the product URL you sent.
the Related products2 section is my plugin’s output and it looks fine, the image is not huge and the related product seems to be right.

Now the second block with Related Products title (the second one) is your theme’s related products section.If you check the HTML output you will see “section porto-related-products”

Now if you have set my plugin to relate products by category you should get all products related to each other.If you don’t get that then it is a theme conflict I guess.Did you try to disable theme’s related output?

As for the CSS you can override any CSS rule (coming from a theme or plugin) by editing your child theme’s style.css or by using wp customizer’s css section.