The 26-12 bonus-point win over Benetton means Warriors now share top spot in the URC with Leinster after five rounds of fixtures, but there remains a feeling that there is a lot more to come from this squad, particularly in attack.
"It's easy to be harsh on yourselves in review after a bonus point win like that against an unbeaten team," said Fagerson in The Scotsman. "It was Franco's old team and he knew a lot of the players and coaches so he was happy on Monday. But as players we set high standards. We probably feel like we haven't fired too many shots in attack this year. We've got a great attack structure but we've probably just not been stringing the phases together that we want. That's something we've been working on."
Ulster come calling to Scotstoun on Saturday having - like Glasgow - have won four and lost one of their URC games this season. Warriors have an impressive home record - you have to go back to October 2021 for the last time Glasgow lost at Scotstoun in the regular season.
"It's an impressive record and one that means a lot to the players," said Fagerson. "We pride ourselves on playing for our fans at our home ground.
"We call it The Fortress and always want to do well. We're trying to take that into our away games as well. Every time we play at home we give 100 per cent and that's the standard and everyone knows that.
"The fans make so much noise and make it such an incredible atmosphere so it's only right that you give everything for them. That shows in the way that we play here. The crowd is so close to the pitch that you can really hear them, especially the chants from the East Stand. And having your friends and family coming to watch you will always be special. You've got that extra bit to play for. It's an awesome place to be."