Description:
------------
This is the curl_getinfo when running PHP 5.5.33

Array
(
    [url] => https://domain.com/file.xml
    [content_type] => text/xml
    [http_code] => 200
    [header_size] => 275
    [request_size] => 120
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 36.38618
    [namelookup_time] => 0.124528
    [connect_time] => 0.165643
    [pretransfer_time] => 0.537761
    [size_upload] => 0
    [size_download] => 55369333
    [speed_download] => 1521713
    [speed_upload] => 0
    [download_content_length] => 55369333
    [upload_content_length] => -1
    [starttransfer_time] => 0.619762
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => y.y.y.y
    [certinfo] => Array
        (
        )

    [primary_port] => 443
    [local_ip] => x.x.x.x
    [local_port] => 57308
)

This is the curl_getinfo when running PHP 7.1.3

Array
(
    [url] => https://domain.com/file.xml
    [content_type] => text/xml
    [http_code] => 200
    [header_size] => 275
    [request_size] => 120
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 180.262711
    [namelookup_time] => 0.004188
    [connect_time] => 0.043447
    [pretransfer_time] => 0.254245
    [size_upload] => 0
    [size_download] => 14548717
    [speed_download] => 80708
    [speed_upload] => 0
    [download_content_length] => 55369333
    [upload_content_length] => -1
    [starttransfer_time] => 0.362485
    [redirect_time] => 0
    [redirect_url] => 
    [primary_ip] => y.y.y.y
    [certinfo] => Array
        (
        )

    [primary_port] => 443
    [local_ip] => x.x.x.x
    [local_port] => 51196
)
Array
(
    [errno] => 28
    [error] => Operation timed out after 180262 milliseconds with 14548717 out of 55369333 bytes received
)

Test script:
---------------
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, 'https://domain.com/file.xml');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_TIMEOUT, 180);
curl_setopt($curl, CURLOPT_ENCODING, 'gzip, deflate');

$response = curl_exec($curl);

print_r(curl_getinfo($curl));

print_r([
    'errno' => curl_errno($curl),
    'error' => curl_error($curl),
]);


Expected result:
----------------
>1.0 MB/s download speed

Actual result:
--------------
< 100 KB/s speed and timeout error