YASSS !

I uninstalled the demo and then reinstalled the game and it works fine.

Thanks a lot for your quick reply.

Hello,

I've tried the Factorio demo 2 days ago and really enjoyed it, so I decided to purchase the game.

But when I play the complete game, it is very slow.
Actually I can't even play. I if try to move the character, from the moment I press the key to the moment it actually moves, it's about 4 or ...