Use below code.

$web = array( 'posts_per_page' => 5,
    'orderby' => 'date',
    'order' => 'DESC',
    'no_found_rows' => true,
    'update_post_term_cache' => false,
    'update_post_meta_cache' => false,
    'nopaging' => true,
    'post_type' => 'product'
);
$query = new WP_Query( $web );