Lamie replaced skipper Lee Kilday at half-time after the 25-year-old appeared to roll his ankle in the first half of the Cappielow clash.
The defender insists things didn’t get going for Ton against the Pars, and they’ll have to put that right against Hibs tomorrow night.
He told the Tele: “It was really disappointing, regardless of the record we had. Putting that aside, the outcome was just disappointing.
“To a man we are aware that it was well below par from what we’ve been producing at times this season.
“It was just a flat performance. I don’t think you can put your finger on what caused it or why it was. It’s very rare that everyone has an off-day but it was pretty much the case on Saturday where nobody was at the races.
“Right across the park we were underwhelmed with our own performance and it’s now about putting that right.
“It was very mellow in terms of acceptance of the defeat. The opposite of our form was reflected, I would say.
“Usually, if we’ve not played well, there’s always been a rally around the dressing room to get ourselves going, but it just didn’t click on Saturday.”