WordPress pagination fuction in shortcode always displayed on the top

WordPress pagination function in shortcode always displayed on the top. Please have a look on below code

/*-------------------------------------------------------------------------*/
    /* Custom Pagination */
    /*-------------------------------------------------------------------------*/

    function suareztheme_pagination($pages = '', $range = 2){

    	$showitems = ( $range * 2 ) + 1;  

    	global $paged;
    	if(empty($paged))
    		$paged = 1;

    	if($pages == ''){

    		global $wp_query;
    		$pages = $wp_query->max_num_pages;

    		if(!$pages){

    			$pages = 1;
    		}
    	}

    	if( 1 != $pages ){

    		$pagination_html .= '<div class="pagination">';

    		if( $paged > 2 && $paged > $range + 1 && $showitems < $pages ){

    			$pagination_html .= '<a href="' . get_pagenum_link( 1 ) . '">?</a>';

    		}

    		if( $paged > 1 && $showitems < $pages ){

    			$pagination_html .= '<a href="' . get_pagenum_link( $paged - 1 ) . '">?</a>';

    		}

    		for ( $i = 1; $i <= $pages; $i++ ){

    			if ( 1 != $pages && ( !($i >= $paged+$range+1 || $i <= $paged-$range-1) || $pages <= $showitems )){

    				if ( $paged == $i ){

    					$pagination_html .= '<span class="current">' . $i . '</span>';

    				} else{

    					$pagination_html .= '<a href="' . get_pagenum_link( $i ). '" class="inactive">' . $i . '</a>';

    				}
    			}

    		}

    		if ( $paged < $pages && $showitems < $pages ){

    			$pagination_html .= '<a href="' . get_pagenum_link( $paged + 1 ) . '">?</a>';

    		}

    		if ( $paged < $pages - 1 &&  $paged + $range - 1 < $pages && $showitems < $pages ){

    			$pagination_html .= '<a href="' . get_pagenum_link( $pages ) . '">?</a>';

    		}

    		$pagination_html .= '</div>';

    		return $pagination_html;
    	}

    }

Then I called it in the shortcode function.

/*-------------------------------------------------------------------------*/
    /* Grid Shortcode */
    /*-------------------------------------------------------------------------*/

    function RecentBlog($atts, $content = null) {
    	extract(shortcode_atts(array(
    		"comments" => 'true',
    		"date" => 'true',
    		"columns" => '4',
    		"limit" => '-1',
    		"title" => 'true',
    		"description" => 'true',
    		"cat_slug" => '',
    		"post_type" => '',
    		"excerpt_length" => '15',
    		"readmore_text" => '',
    		"pagination" => 'false'
    	), $atts));

    	global $post;

    	$postformat = get_post_format();

        ....

    	if ( get_query_var('paged') ) {
    		$paged = get_query_var('paged');
    	} elseif ( get_query_var('page') ) {
    		$paged = get_query_var('page');
    	} else {
    		$paged = 1;
    	}

    	......

    	if (have_posts()) : while (have_posts()) : the_post();

    		$postformat = get_post_format();
    			if( $postformat == "" ) $postformat="standard";

    		$protected = "";

    		$portfoliogrid .= '<div class="' . $column_no . ' post grid-post post-' . $postformat . '">';

    			.....////

    			$portfoliogrid .= '<div class="summary-info">';
    				.......
    			$portfoliogrid .='</div>';

    			// If either of title and description needs to be displayed.
    			if ( $title == "true" || $description == "true" ) {

    				$portfoliogrid .='<div class="work-details">';
    				......
    				$portfoliogrid .='</div>';

    			}

    		$portfoliogrid .='</div>';

    	endwhile; endif;

    	if ( $pagination == "true" ){

    		if ( isset( $additional_loop ) ){

    			echo suareztheme_pagination( $additional_loop->max_num_pages );

    		} else {

    		    echo suareztheme_pagination();

    		}

    		if ( function_exists("suareztheme_pagination") ) {
    		} else {

    			next_posts_link('?? Older Posts');
    			previous_posts_link('Newer Posts ??');

    		}

    	}
    	wp_reset_query();
    	return $portfoliogrid;
    }

    add_shortcode( "recentblog", "RecentBlog" );

The above code is working fine , but it has one problem, when it display in specific page, it always displayed on the top regardless it’s place. So appreciate your support to help me, thanks in advance.