Hi,

You can delete the email & website field by following these steps:

1. Install the plugin: Code Snippets: https://wordpress.org/plugins/code-snippets/,

2. Go to Snippets, Add a new snippet code:

<?php
add_filter('comment_form_default_fields', 'unset_url_field');
function unset_url_field($fields){
    if(isset($fields['url'])) {
        unset($fields['url']);
    }
    if(isset($fields['email'])) {
        unset($fields['email']);
    }
    return $fields;
}

Save the change and reload your site.

If you want to customize more fields and structure, please go to "wp-content/themes/pennews/comments.php"  and edit.

Best Regards,
PenciDesign.