2-3 fps in the game Farmer's Dynasty (Farmer's Dynasty)

somewhere a year ago I played a pirate and everything was fine. decided to look into warzone, he said - without updating the firewood in the video, you can not even try. ok, updated, played, decided to return "to the field" and play until the second child. and fuck me, while the menu is all right, only the world is loaded with 2-3 fps. driver rollback - the same thing, graphics settings affect only the beauty of the picture. reinstalled with the demolition of files in appdata (save file) - nothing. demolished everything and scored for a long time. now I decided to take a chance and took the game in incentive. and no, the miracle did not happen, the fps are still the same. in the task manager you can see that the game eats all the video memory 2.9 out of 3 (although two are indicated in the rec. tr.). already where to dig I do not know. can you tell me something ..