The actual estimate is 13.82 billion years now. Do you have a better one? Nonetheless, God is extremely patient.
What’s a few tens of millions of years here or there? You’ll be needing them again soon enough. Might as well round up.
The God of the Bible, of Abraham and Isaac, did not use the death of his creatures to create new ones. Death came into the world by sin.
Other than that, you’ve got a point. God is patient and slow to anger.