I will try that.
OK, that’s it why. I play on Europeen rom (E) [!]
If I play: Super Mario Bros. (JU) [!].nes or Super Mario Kart (U) [!].smc the speed is correct.
How can I change that ?
For some game, that is not a problem (95%) but for other as Pokemon or Zelda where there is a lot of text that is needed to be understand, I think it will be better in French.