Burgertime Progress

Compared to others this Burgertime score sucks. But it's the highest I've gotten so far. The forth level always seems to get choppy for me. I'm pretty certain it's only because of all the stuff on the screen... several burger ingredients, the chef, the egg, the pickles, the hotdogs. It seems that when the programmers of NES games encountered a situation like this they always had two options... the first is to let the game suffer the slow down, and the other was to compensate with 'flicker'. Super Mario Bros. encounters this a lot. But I guess in a game like Burgertime choppiness is better than flicker because who would want Mr. Hotdog creeping up on you like a ghost?