проблема по оптимизации сайта

$tempArray[] = "tags REGEXP '[[:<:]](" . $value  . ")[[:>:]]'";

$tempArray[] = "tags REGEXP '\\\\b(" . $value  . ")\\\\b'";

$where_approve . " ORDER BY " . PREFIX . "_comments.id " . $comm_msort;

$where_approve . " ORDER BY " . PREFIX . "_comments.rating " . $comm_msort;

[not-available=userinfo]
<div class="nav-load" id="nav-load">[next-link]Загрузить еще[/next-link]</div>

<nav class="navigation"[available=lastcomments] style="padding: 4% 8%;"[/available]>
	<div class="page_next-prev">
		<span class="page_prev" title="Предыдущая страница">
			[prev-link]<svg class="icon icon-left"><use xlink:href="#icon-left"></use></svg>[/prev-link]
		</span>
		<span class="page_next" title="Следующая страница">
			[next-link]<svg class="icon icon-right"><use xlink:href="#icon-right"></use></svg>[/next-link]
		</span>
	</div>
	<ul class="pagination">
		{pages}
	</ul>
</nav>
<script type="text/javascript">
$(document).ready(function(){
    
         $('body').on('click','#nav-load a',function(){
        var urlNext = $(this).attr('href');
        var scrollNext = $(this).offset().top - 200;
        if (urlNext !== undefined) {
            $.ajax({
                url: urlNext,
                beforeSend: function() {
                    ShowLoading('');
                },            
                success: function(data) {
                    $('.navigation').remove();
                    $('#nav-load').remove();
                    $('#dle-content').append($('#dle-content', data).html());
                    $('#dle-content').after($('#bottom-nav'));
                    window.history.pushState("", "", urlNext);
                    $('html, body').animate({scrollTop:scrollNext}, 800);    
                    HideLoading('');
                },
                  error: function() {                
                    HideLoading('');
                    alert('что-то пошло не так');
                  }
            });
        };
        return false;
    });
    
});
</script>
[/not-available]