Inter striker Diego Milito scored two goals and secured the Italians a 2-0 in the final in the Santiago Bernabeu on Saturday.
“We were not good enough to impose our game,” said Van Gaal. “Inter only reacted, but they still won deservedly.
“The timing of the goals was decisive. The players learned today that it comes down to small details.
“I still have the feeling that we could have won. There were no great difference.
“We attacked, Inter defended, but you have to be in great shape to beat Inter and we were not today. I still think Inter merited the win.”
