its due to the limitation of the suite used to make the game, turn down the graphics, has nothing to do with your computer or setup, and not sure if the dev will even be able to fix that, however I have never used Flash, and since it is basicly abandoned and dead, likely never will, but as long as u reduce time it takes for objects on screen to disappear, and reduce the graphics to its normal, or somewhere close to it, there shouldnt be any "lag click".