Sky Blues boss Mark Robins spoke of his disappointment after his side left the Swansea.com stadium empty handed.
First half goals from Jamie Paterson and Michael Obafemi were followed up by a second for Obafemi minutes into the second half, which proved costly come the final whistle.
Gustavo Hamer pulled one back and in a game where City created opportunities, they were unable to take them to get themselves back into the game.
Reflecting after the final whistle, Robins spoke of his frustration with the chances his side gave the Swans which they took and the chances his side were presented but couldn’t take.
“We’re disappointed, absolutely.” Robins said.
“We would have liked to have played better of course we would. I don’t know what it was, I think it was a mixture of their assured first touch, the way they move the ball and the way we didn’t get up and leave a mark on them and the way we allowed them to play round us.
“In terms if our movements they're a side that try to pull you into positions you don’t want to be and you have to get it right and because it happens quickly.
“Sometimes you get it wrong, and we got it wrong twice and unfortunately for us the ball is in the back of the net twice.
“The third one we end up playing a ball hitting against their men and it gets cut out and they break on us and stick it in and it kills the game
“Our ‘keeper hasn’t had a save to make and we’ve had six opportunities on goal and three of them were one-on-ones and the other were clear cut chances.”
Despite the positive of welcoming Matty Godden back into the fold, with the striker getting half hour under his belt, City were dealt blows midweek losing other players.
Dominic Hyam missed the trip with a concussion suffered in training, Callum O’Hare also missed out after a succession of knocks, Jordan Shipley was injured midweek playing for the Under-23s and even Martyn Waghorn was suffering with illness heading into the game.
“It wasn’t a good game and I don’t think they played as well as they could and we were way off what we are capable of doing and we need to just learn from this game.
“We have a game coming on Tuesday and it’s a different game again and if we’re not up for the fight we know what its like to play Luton Town.
“It’s good the games are coming quickly and we now have three games at home where we have to pick up some good performances and some points of the back of it.
“Elsewhere, Godden and Waghorn came on and they needed some minutes in their legs. Waghorn has been ill all night and he’s been sick in the dressing room just.
“Dom Hyam has a head problem, he got a whack on his head in training so he will hopefully be back quickly and callus O’Hare is injured. When those things happen, it takes its toll a little bit.”