The problem with many EAs and manual systems - is taking a 'death trade' and clinging onto it, hoping price would change soon.
One of the things professional traders learn, is how to identify that you are in such a trade and taking corrective action..
This EA backs out of a trade if it loses one of the 4 requirements. It closes a lot of trades very early, but this definitely contributes hugely to its success.
My accounts will ALWAYS show high DD. This is done purposely to maximize our withdrawals every week.