Consecutive wins for young Canaries
Having beaten Fulham 1-0 at Colney Training Centre last weekend, City's youngsters made it back-to-back wins thanks to a brace from George Couzens and a late strike from substitute Anthony Spyrou.
However, Murty felt the visitors could have performed better in the Barclays Under-18s Premier League contest, and told canaries.co.uk: "The scoreline flattered us because we played well in flashes but Brighton were the better team.
"We lacked an element of control and intensity, while our decision-making needed to be better. Having said that, we've talked about being clinical, which they were.
"At times we played some good football, so I can't be disappointed in that regard. We scored two really good goals, including Anthony Spyrou coming over from the Under-16s to score with his second touch, which is fantastic for him.
"It's a significant moment for Anthony and one he should take full credit for. Overall though, as a team, we know we need to better in order to hit our targets."
The Academy coach reserved special praise for Canaries goalkeeper Aston Oxborough, and added: "Without his performance, the scoreline would have been very different.
"He was the outstanding player and took his week of training into the game. We played small-sided games with the Under-21s on Friday and he was phenomenal then.
"Hopefully this can be the start of him recognising his potential and backing himself. Had it not been for him it would have been a totally different result, so he deserved a massive pat on the back."