Course data from an external API and displays it in the user's account area

php-my-courses.php

/**
 * This code retrieves course data from an external API and displays it in the user's
 * My Account area. A merchant has noticed that there's a delay when loading the page.
 *
 * 1) What changes would you suggest to reduce or remove that delay?
 * 2) Is there any other code changes that you would make?
 */
public function add_my_courses_section() {

	// get external api user id from user's meta for current user
	$api_user_id = get_user_meta( get_current_user_id(), '_external_api_user_id', true );

	// return if api user id is not set or nothing found
	if ( ! $api_user_id ) {
		return;
	}

	// get courses for the user
	$courses  = $this->get_api()->get_courses_assigned_to_user( $api_user_id );
	// get sso link to the user
	$sso_link = $this->get_api()->get_sso_link( $api_user_id );

	?>
    <h2 style="margin-top: 40px;"><?php _e( 'My Courses', 'text-domain' ); ?></h2>
    <table>
        <thead>
        <tr>
            <th><?php _e( 'Course Code', 'text-domain' ); ?></th>
            <th><?php _e( 'Course Title', 'text-domain' ); ?></th>
            <th><?php _e( 'Completion', 'text-domain' ); ?></th>
            <th><?php _e( 'Date Completed', 'text-domain' ); ?></th>
        </tr>
        </thead>
        <tbody>
		<?php
		if ( ! empty( $courses ) ) :
			foreach ( $courses as $course ) :
				$code = ! empty( $course['Code'] ) ? $course['Code'] : '';
				$name = ! empty( $course['Name'] ) ? $course['Name'] : '';
				$percentageComplete = ! empty( $course['PercentageComplete'] ) ? $course['PercentageComplete'] : '';
				$dateCompleted = ! empty( $course['DateCompleted'] ) ? $course['DateCompleted'] : '';
				?>
                <tr>
                    <td><?php echo $code; ?></td>
                    <td><?php echo $name; ?></td>
                    <td><?php echo $percentageComplete; ?> &#37;</td>
                    <td><?php echo $dateCompleted; ?></td>
                </tr>
			<?php endforeach;
		else :
			?>
            <tr>
                <td colspan="4"><?php _e( 'No courses found.', 'text-domain' ); ?></td>
            </tr>
		<?php
		endif;
		?>
        </tbody>
    </table>
    <p>
        <a href="<?php echo $sso_link; ?>" target="_blank" class="button <?php echo isset( $_GET['active_course'] ) ? $_GET['active_course'] : ''; ?>">
			<?php _e( 'Course Login', 'text-domain' ); ?>
        </a>
    </p>
	<?php
}