public function isLanguageLoaded()
    {
        if ($this->_blLoadLanguage == null) {
            $this->_blLoadLanguage = false;
            if ($loadLanguage = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('bl_perfLoadLanguages')) {
                $this->_blLoadLanguage = $loadLanguage;
            }
        }

        return $this->_blLoadLanguage;
    }