But while fans were left raving about the Warriors' performance, Townsend was quick to point out there is more to come from his men.
"It was a great result and a fantastic start to our campaign, to deny them a bonus point and score maximum points ourselves," Townsend told BBC Scotland.
"But we could have been much better. I am frustrated with a few things.
"We didn't execute some of our set-piece plays very well.
"I thought our forward pack were outstanding and we put them under so much pressure, but we could have had a lot more reward for it.
"With the pressure we had in the scrum, I am disappointed we didn't come away with a try, and it took a bit of inspiration from our backs to get the momentum back in our favour.
"I am listening to myself being critical when it is such a great start but there are a few things to improve for next week.
"We gave away too many penalties in the first half. But when we managed to get the ball, our forwards were carrying really well, with [scrum-half] Henry Pyrgos putting them into the right areas."
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