Paypal takes 1-2 minutes before routing to PP for checkout

-- url of the page with the problem -- : brandonburlsworth.org
-- HikaShop version -- : 2.6.4
-- Joomla version -- : 3.6.5
-- PHP version -- : 5.6
-- Browser(s) name and version -- : Chrome or Safari (both latest)
-- Error-message(debug-mod must be tuned on) -- : No error, just takes forever on Paypal checkout

We recently migrated customers to a new server and have noticed that when using the Hikashop on this site, when using paypal to checkout, it can take 1-2 minute for the checkout to transfer to paypal.

Any ideas on why this would be happening?

Found this in the error_log

[Wed Dec 28 16:27:57.942243 2016] [proxy_fcgi:error] [pid 371887:tid 140528955934464] [client 104.177.44.44:63088] AH01067: Failed to read FastCGI header, referer: brandonburlsworth.org/hikashop-menu-for-...ask-step/step-3.html
[Wed Dec 28 16:27:57.942255 2016] [proxy_fcgi:error] [pid 371887:tid 140528955934464] (104)Connection reset by peer: [client 104.177.44.44:63088] AH01075: Error dispatching request to : , referer: brandonburlsworth.org/hikashop-menu-for-...ask-step/step-3.html
[Wed Dec 28 18:17:29.343778 2016] [cgid:error] [pid 390549:tid 140529063941888] [client 104.177.44.44:58223] AH01261: daemon couldn't find CGI process for connection 3, referer: brandonburlsworth.org/hikashop-menu-for-...ask-step/step-3.html

Opcache isn't enabled (we're running CloundLinux) for any of the PHP versions. We've tried it in fcgi and now lsapi and same issue. The problem is when you use Paypal as the payment method and click the Finish button, there's a 1-2 minute delay before your taken to the PP page for payment.

Cloudlinux figured it out. IPV6 on the box was misconfigured. Once we disabled IPV6 everything started working correctly.