The in-form winger scored in a 3-1 win at Manchester United last term and is off to a good start to the current campaign.
Albion head coach Fabian Hurzeler said: ""I see a difference in how effective he is on the pitch. So, the output of his actions.
"He had a lot of actions also in games last season but now the output is just bigger.
"He creates more chances. He scores more goals by his actions. And I think that's the main thing.
"It's a very important step in his development. When I look back, for example, against Fulham this season, he had so many actions, but the outcome wasn't there.
"And these are exactly the things where he needs to improve.
"It's about scoring goals, making assists. So, have a clean execution. And I think that's the main thing where he's getting better and better."
Speaking exclusively to The Argus beneath the Stretford End after last season's win, Minteh said: "I always think like that - that Brighton is the best team in the Premier League.
"Although people disagree with me, that is my mantra.
"I believe in my team-mates that we can do this every week."
Minteh is likely to be Albion's main wing threat at United with Japan star Kaoru Mitoma doubtful for the game.
Hurzeler will update on his squad on Friday morning with Brajan Gruda and Joel Veltman also doubtful.