How to fix a specific page (author archive) loading speed?

For some reason, author pages on my blog are loading extremely slow, even for authors that have very few posts, as you can see [here][1]. I am not a developer, but I can understand the code a little bit. Please assist, thank you.

        ?php 
        // Register Calendar widget scripts
       function snaplap_widget_calendar_scripts_and_styles(){
        wp_register_style( 'LatoWidget', get_stylesheet_directory_uri() . '/js_calendar/css/Lato_300_400_700.css');
        wp_enqueue_style( 'Lato' );
        wp_register_style( 'FontAwasomeCalendarWidget', get_stylesheet_directory_uri() . '/js_calendar/css/fontawesome.css');
        wp_enqueue_style( 'FontAwasomeCalendarWidget' );
        wp_register_style( 'stylePersonalCalendarWidget', get_stylesheet_directory_uri() . '/js_calendar/css/style-personal.css');
        wp_enqueue_style( 'stylePersonalCalendarWidget' );

        // Register and Enqueue a Script
        // get_stylesheet_directory_uri will look up child theme location
        wp_register_script( 'jQueryLatestCalendarWidget', get_stylesheet_directory_uri() . '/js_calendar/js/jquery-latest.min.js');
        wp_enqueue_script( 'jQueryLatestCalendarWidget' );
        wp_register_script( 'simpleCalendarWidget', get_stylesheet_directory_uri() . '/js_calendar/js/simplecalendar.js');
        wp_enqueue_script( 'simpleCalendarWidget' );
    }

    add_action('wp_enqueue_scripts', 'snaplap_widget_calendar_scripts_and_styles'); 

 get_header(); ?

    div id="core" class="snap-left-working-area search-result"

        div id="content"

                    ?php
                    $curauth = (isset($_GET['author_name'])) ? get_user_by('slug', $author_name) : get_userdata(intval($author));

                    $wp_query-query_vars['page']  1 ? $current = $wp_query-query_vars['page'] : $current = 1;
                    query_posts( array(
                        'post_type' = array('post','magazines'),
                        'author' = $author,                    
                        'posts_per_page' = 5,
                        'paged' = $current ) 
                    );

                    if (have_posts()) : ?

                    h1?php _e('Author : ','vergo'); echo $curauth-display_name; ?/h1

                div style="clear: both;"/div

                div class="postauthor"

                    ?php echo get_avatar($curauth-user_email, 90 ); ?

                    p class="authordesc"
                        ?php _e('Website','vergo');?: a href="?php echo $curauth-user_url; ?"?php echo $curauth-user_url; ?/abr/
                        ?php echo $curauth-user_description; ?
                    /p

                /div

                div style="clear: both;"/div

                ul class="archivepost"

                    ?php while (have_posts()) : the_post();
 get_template_part('/includes/post-types/archivepost'); 
 endwhile; ?   !-- end post --

                /ul!-- end latest posts section--

                div style="clear: both;"/div

                        div class="pagination"?php pagination('laquo;', 'raquo;'); ?/div

                        ?php else : ?         

                            h3This author has not created any posts./h3

                            ?php get_search_form(); ?br/
                        ?php endif; ?

        /div!-- end #core .eightcol--

        !-- #sidebar --          

        !--div id="core_bg"/div--

    /div!-- #core --

    div id="rightsidebar" class="body2 snap-right-part-new"
        ?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar("Right Sidebar") ) : 
endif; ?
    /div

    ?php get_footer(); ?

  [1]: http://www.snaplap.net/author/manojlo/