They ain't so big... just tall, that's all
The games with some comments:
Well, ouch! We lost four-nil, but I hope you thought that, however
big and strong they were, they weren’t that much better than us, and
they didn’t do anything very special to beat us. (Is that a good
thing?) But I was very pleased and proud with how well you
played, how well you fought, and how well you concentrated. It
wouldn't have needed much luck for us to come away with 2-2.
They're just tall, that's all...
There are three main ways you can try to attack against the Two Knights' Defence.
(A) 4.Ng5 is the most obvious, but I don't recommend it. White can win a pawn, but if Black knows the book moves, you will have to defend against very active Black pieces.
e.g. 4.Ng5 d5! 5.exd5 b5!? 6.Bxb5 Qxd5
4.d4 is the move I recommend.
(B) There is a fun line which Black can equalise against but it's White who is attacking: Max Lange Knight Variation