PHP - Simple Html Dom load multiple pages speed - php

Question

I finally got my script to work but it takes a long time to do the search (via ajax). Basically by entering a keyword, it searches the page and captures all the titles, urls, and thumbnails of the videos. But the problem arose to me to capture the tags that were inside each video, so I had to forcibly access each video to capture the tags, the only way I could think of was to add a loop inside the loop that captures the found videos that is to say:
For each video found -> Capture title, thumbnail, URL -> With captured URL -> Go to that URL and capture your tags.
The code I used is basically the following, I need to know if there is any other method to speed up searches, either by optimizing the code or using another way:
My parse function:
<?php
function dlPage($href) {
$curl = curl_init();
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_HEADER, "Accept-language: en-US");
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_URL, $href);
curl_setopt($curl, CURLOPT_REFERER, $href);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.125 Safari/533.4");
$str = curl_exec($curl);
curl_close($curl);
// Create a DOM object
$dom = new simple_html_dom();
// Load HTML from a string
$dom->load($str);
return $dom;
}
?>
My script:
$buscartag = str_replace(' ', '+', $_POST['buscartag']);
$urlparse = "https://example.com/?k=".$buscartag;
$paginas = rand(0, 50);
$html = dlPage($urlparse."&p=".$paginas);
$counter = 0;
foreach($html->find('div.video-box') as $videos) {
if ($videos) {
$titulo = $videos->find('div.video-box>p[!class])>a[!class]',0)->attr['title'];
$pathvideo = str_replace('_', '', $videos->attr['id']);
$link = "https://www.example.com/".$pathvideo."/";
$thumb = $videos->find('div.thumb')->innertext
//HERE MY SECOND BUCLE FOR TAGS!!!
$gettags2 = array();
$html_tags = file_get_html($link);
foreach ($html_tags->find('a.nu') as $gettags){
$gettags2[] = $gettags->innertext;
if (!empty($titulo) && !empty($link) && !empty($idvideo) && !empty($urlimagen)){
$counter++;
//here will echo all variables
}}