I think it doesn't need to wait until half of the season to determine the winner. The winner will be PSG. They recorded impressive statistics from the last three games. They outperform their opponents like nothing. Also, the odds are favoring them to win the competition.
None are able to compete with PSG now. Lille and Monaco can only compete for the UCL spot. They're too far behind compared to PSG. Betting on PSG is always a guaranteed win.
Ligue 1 teams are not that strong this season except PSG. However, teams such as Monaco, Marseille and Lille have battled PSG for the title in the past. But this season these teams are not strong enough. And their performances have been erratic at the start of the season. Apart from PSG, no other team has won three matches yet. However, Marseille, Lens and Monaco are still unbeaten. And the Lille team won two and lost against PSG.
PSG's management is very rich so they can spend a lot of money and build a strong squad. No other team in Ligue 1 spends as much money and builds a strong squad as PSG. This is why we see PSG dominate every season. PSG easily won the Ligue 1 title.