Sorry for the late reply.
Please go to file vc_templates\services_small.php and find this line: $output .= ' <h4><a href="'.esc_url($data['link']).'">'.esc_html($title).'</a></h4>';
Replace with this: $output .= ' <h4><a target="_blank" href="'.esc_url($data['link']).'">'.esc_html($title).'</a></h4>';
