Lot of lags http://www.mediafire.com/download/etzqo1j0b4b118o/mc2dinstaller.exe

I made a small remake of minecraft2d
And I have one question: how to make my game faster (less lags)?
Thanks
Gekor
P.S.
Sorry, but i used Google Translator ;D

Hard to tell what's making your game lag without seeing the .mfa