POST requests for specific URL are taking 3 minutes

Question

All my POST type requests for a specific URL are taking about 3 minutes to return the sponse, that is, a few seconds after I submit the form, I look at the API website and there is my data posted, but on my site the request is pending, after exact 3 minutes it is finalized returning the required data.

I believe something is holding the answer for 3 minutes as I tested the same code in local environment and worked quickly (took about 10 seconds), which may be causing this "slowness"?

public function http_request($url, $headers, $data = array())
{
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_URL, 'https://api.binance.com/api/v3/order');
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
    if ($data) {
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    }
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
    curl_setopt($ch, CURLOPT_ENCODING, "");
    $content = curl_exec($ch);

    curl_close($ch);
    return $content;
}