Leeds had the lead through Dominic Calvert-Lewin before Matheus Cunha found an equaliser for United.
Amorim said, "I think we played well. I think we had more control in this game than we showed against Wolves. That is important because it shows how you can prepare for this week with the mistakes that we learned from the last game. We controlled Leeds, on the set pieces, the second balls, they are really quick up front. We controlled it well.
"We had our opportunities to win the game. We are losing games on the details - the Leeds goal, we are controlling the game and then one kick of the ball in transition but we managed to get back into the game. Last year it would be completely different. This year we are more in control of the games than we were last year but we are frustrated not to win."
On the Leeds goal, he continued: "Ayden (Heaven) and Leny (Yoro) are really young but it is not because of that. If you play so well during 90m minutes and you have a mistake that can happen. If you look at the game we had chances to score the second one and nobody would be talking about the goal of Leeds."
On Cunha, Amorim added: "Not just him but Josh (Zirkzee) played well in the 20 minutes he had, Ben (Sesko) linked the play well today, (Manuel) Ugarte is showing that he has more to give, and I am really pleased. If these guys play well we always have the chance to win the game."
On the window: "United is one of the best clubs in the world. If you are here and focusing on a different club then something is wrong with you. Just focus on the game and prepare with the players that we havee. We have more too, I expect more minutes for (Bruno) Fernandes and (Mason) Mount, so we have more players that can help us."