The wing back was excellent against Manchester United, despite the Albion losing the game 3-2.
They had the better chances all match, even hitting the post a record five times.
And Potter thinks March will only get better as he plays more games with the team.
The Brighton head coach said post-game: "I thought he was amazing, to be honest.
"His performance was one I think everybody knows or understands is there from Solly. The challenge is to get it out of him more.
"That's not necessarily his challenge alone, it's all of us.
"I thought he was fantastic, that's why I was so pleased not only with the equalising goal but that it was him scoring.
"He hit the post and contributed to the first goal that we scored.
"I feel for him that he has got nothing to show for that performance."