Yii2 oracle 11g gii relations timeout

I have:

Windows Server 2012 R2
wampserver 3.0.6 64bit
yii2
php_oci8_12c enabled,
php_pdo_oci enabled,
oracle instantclient-basiclite-windows.x64-12.1.0.2.0
System Path defined according
added mod_fcgid 2.3.9 to Apache
added oci8 2.0.12 Thread Safe x64 for PHP 5.6 (replaced old php_oci8_12c.dll)

I see PDO for Oracle in phpinfo.

I have a db_o.php config file:

return [
    'class' => 'yii\db\Connection',
    'dsn' => 'oci:dbname=//SOME_IP_ADDRESS:PORT/YOUR_SID;charset=UTF8',
    'username' => '',
    'password' => '',
];

Based on this oracle article I've managed to set up everything and basically it works (with limitations), however changes are needed:

it doesn't have to be NTS, I have used TS components everywhere
as wampserver uses phpForApache.ini, and Fcgid config needs php.ini, I had to duplicate phpForApache.ini and rename it to php.ini.
instead of <Directory "c:/Apache24/htdocs"> of course I had to add +ExecCGI to <Directory "${INSTALL_DIR}/www/">

I get now in gii table names while generating model, but:

if I need relations, it takes more than 2 minutes, so wampserver is stopping. I don't know why, but I think it's because the database and relations are simply too complicated (lot of composite keys etc.). I'm getting Internal Server Error, before max_execution_time (I have to change it in both php ini files). I've found in apache error log that it was caused by mod_fcgid (read timeout from pipe), so I have changed FcgidIOTimeout and FcgidBusyTimeout also to 300 (sec.) and memory_limit to 512M because it was also not enough. Why does it need so many resources I have no clue, because in the end it has only 3 relations generated. :]

So it works now. No questions. Many thanks!