The Scot saw his side battle to a 2-1 win over the west London club at Craven Cottage on Saturday and has been pleased with the speed his team are adapting to the Premier League
The result was sealed by a sensational 25-yard strike from Jordon Mutch in the dying minutes as the Welsh side, who were boosted by eight close-season arrivals, climbed to 11th - just three points shy of third-placed Chelsea.
|17/2||Cardiff are 17/2 with bet365 to beat Newcastle 2-1
"Playing against really good teams, we've had lots of the ball and lots of chances," he said.
"You've got to be clinical, because it can punish you in this division. Chances can be few and far between so when you get them you hope you can finish them.
"I've got great faith in them, it's a great group of players and we've done very good business in the transfer window.
"The new players have settled in very quickly, there's real experience and know-how there."