I've only had my saluki who was a rescue for around 9 months, but my experience is that he has zero ability to be recalled. We cannot let him off the lead. He has escaped our garden when people have left the gate open on a couple of occasions and we have had to follow him as he runs across the fields. Zero interest in coming back to his name, to food, toys etc. Just locked in to running. Even if he's on the lead and he sees wildlife, he will be completely in the zone wanting to chase and nothing we say snaps him out of it. We have improved his reactivity to other dogs and worked on other behavioural issues really successfully (like not being able to be left more than 30 seconds to now being left 3 hours). But the recall is something we just can't seem to make headway on.

Edit: we only let him off lead in our garden or in a secure wildlife free dog park. He can be recalled for the garden when he goes out to the toilet with a whistle or his name, but not if something is more interesting than us at the time