today my prestashop back office started loading really slow. The information page in advanced parameters isn't even loading. It keeps trying to load and after a time it just timesout.
I enabled debug mode and noticed that TraceableFirewallListener takes a really long time to finish.
I disabled the api calls in class/tools.php but that did nothing to help.
public static function addonsRequest($request, $params = array())
{
return false;
My prestashop version is 1.7.6.5
Remember that on 1.7 there's a second call to Addons API in src/Adapter/Addons/AddonsDataProvider.php
you might want to disable it here as well.
Overall it would be extremely hard to help you without debugging your store directly