The Nerazzurri basically controlled the derby, they hit the post three times, Cristiano Ronaldo's shot and Lu Kaku's header helped the team beat Milan 2-0.
The victory of this game means that Inter Milan still maintains a total victory in the league, and the Nerazzurri, which won all four games, continues to lead the standings.
"Let's say this is a derby. These are special games that are never easy to predict, especially because both sides are famous teams like Inter Milan and Milan, "Kong Di told DAZN after the game.
"Boys play well in all aspects. Our performance in the Champions League is bitter, which may give us more motivation to enter the derby in the right way.
"This is our deserved victory, and I am happy for our fans, because the derby will always be a derby."
Lu Kaku scored three goals in the first four Serie A matches, and the Belgian praised Kong Di in the post-match interview, but the Inter coach said he wanted more from Lu Kaku.
"Of course he can pay more. I told him too. He is 26 years old and came here with his own potential. If we cooperate with him properly, he will become extremely important.
"Lautaro Martínez is only 22 years old, so we need to help train and improve these players through our daily work. This is my job, and the important thing is that they are willing to improve themselves with me, and so are they.
"I am satisfied with our Serie A start, but not so satisfied with the Champions League, but I also believe that setbacks can help us get back on the right path."
It is reported that in the Champions League match against Slavia Prague, brozovic and Lu Kaku clashed at half-time, and it was these two players who helped Inter win today.
"Brozzo and Lu Kaku are lovely young people. If anything happens, I may be angry with them, too. They are all good people. They need to learn to be more ruthless on the court, not naive. If there is a conflict between them, it is welcome, because it means that there is blood in their veins and a fire is burning among them.
"I used to be a player. I quarreled with my teammates many times, and then went out to eat with them. No big deal. "
Compared with Milan, Inter Milan now seems to be on another level. Kong Di said:
"In the past two months, we have been working hard. There will inevitably be some difficulties, because some players come late and some players leave late, but when we have the ball and when we don't, we all have a clear concept. We have our own ideas as a team.
"As I said, a commander can have his plan, but he needs infantry to go out and carry out orders, so I am lucky to have very good and disciplined players."