During the ranks you are mentioning, France was occupied and unable to develop/produce many of their own domestic fighter projects. As such, from Ranks III-IV you can for sure expect to see lend-lease and other foreign nations designs present that will naturally be better. Whilst there are still some aircraft to add over these ranks, there really isn't any truly "French" fighters possible.
We cannot really invent French planes better than US ones in places where they did not exist. At higher ranks however its a different question entirely and there will be more and more domestic Fr