public function loadCurrency()
    {
        if ($this->_blLoadCurrency == null) {
            $this->_blLoadCurrency = false;
            if ($loadCurrency = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('bl_perfLoadCurrency')) {
                $this->_blLoadCurrency = $loadCurrency;
            }
        }

        return $this->_blLoadCurrency;
    }