The Gunners came from a goal down to win 3-1 at the KPS.
Arteta said, “Considering the level we were facing, to do what we've done today, the players deserve a lot of credit. I'm really proud of my players.
“Coming into this game I was concerned; we've played a lot of games. But let's not talk about fatigue. We just got on with it.
"They're one of the most dangerous teams in the league to play once you go behind against them. The reaction was terrific the team looked really mature. We played some excellent stuff."
The manager had a special word for goalscorer Nicolas Pepe.
He added, "Nicolas Pepe has been really consistent. This is what we want from him. He creates chances. I'm really pleased with him and all the senior players.
“It's unacceptable the position we are in. We have to improve this dramatically. The only way we can do that is to win games."