“Neymar can do better,” said PSG coach Thomas Tuchel. “It’s the second or third game in four months for him. He’s not at 100 percent capacity.
“He is not at his limit. He can do better, he will do better. He’s going to get to his best level, with matches and decisive goals like that, it’s going to help him.”
The Parisians sit top on 15 points after Angers and Nice both won over the weekend to temporarily join Tuchel’s side at the summit, and followed up their impressive midweek Champions League victory over Real Madrid with the win in constant drizzling rain in Lyon.
Sylvinho’s Lyon remain in ninth place and are without a win since mid-August.
PSG were without the attacking trio of Kylian Mbappe, Edinson Cavani and Mauro Icardi due to injuries, while midfielder Marco Verratti started on the bench.
The best of the early chances fell to Neymar on 22 minutes but his effort was superbly saved by Lopes.
Neymar was denied again by another tidy Lopes stop four minutes before the break as the Portugal international tipped the Brazil forward’s dangerous free-kick over the bar.
PSG’s domination from the first half carried over into the second 45 minutes.
Abdou Diallo had the pick of the chances, using the wet conditions to glance a header from a Neymar corner over the crossbar.
The world’s most expensive player was targeted by home fans when taking set-pieces from the left-hand side as they threw plastic bottles and rolled-up bin bags at him.
With 87 minutes on the clock, substitute Verratti found Neymar in the box who dribbled into space and finally beat Lopes to the keeper’s left with a low shot.
He celebrated by running towards the same corner of the ground where he had earlier been taunted by the Lyon supporters.
Hat-trick hero Ninga
Earlier, Angers moved into second place after replacement Casimir Ninga scored an 11-minute hat-trick in a 4-1 thrashing of Saint-Etienne.
Ninga, who joined the club from second-tier Caen in August, put Angers into the lead with less than a quarter of an hour remaining before adding two more goals by the 89th minute to clinch their first home win over Saint-Etienne in 43 years.
The defeat at Stade Raymond Kopa leaves Les Verts a point above the relegation zone, with Ghislain Printant’s outfit having failed to win since the opening day of the season.
Stephane Moulin’s Angers, who finished 13th in the league last season, have claimed four wins from their opening six fixtures to pull level with Nice in second spot.
“Casimir made a thundering impact. I truly congratulate him because he’s worked a lot since arriving at the club,” Moulin said.
“The second half perfectly resembles what we have been doing since the start of the season. It’s a little bit new but it corresponds perfectly to what we’re trying to do.”