This cheat bot will help you out with lots of Facebook games. It has many features, but one of the easiest tricks is that it allows you to slow down games.
First you need to download the cheat engine [below], install it, then open it.
Click the top left hand red box. You then need to select the window of which your Facebook game is on (probably iexplorer). If you got too many choices then its probably a good idea to close some windows and try again.
A bunch of complicated things come up. Check the box that says ‘enable speedhack’, and change from 1.0 to 0.3 and press set speed.
When you’ve finished cheating uncheck the ‘enable speedhack’ box.