That's strange, are you sure it can't be anything else, because I remember taking fps into consideration. Can't you win even with bigger sizes?
I was able to beat the newest version eating contest. You have to have a much higher stomach limit than you used to. You should compete with an empty stomach and the competition is tough at the beginning now which is fine because I have beaten it all before so the higher difficulty is welcome in my opinion.
I'm almost sure it's due to fps, because now i can't win first contest while having weight 123kg and earlier it was easy to do with weight about 80kg. I already lost three eating contests and my enemy usually eats 1 or 2 "dishes" more than me.
Earlier i was able to get more than 60 fps, so that's why i believe it's the reason. Unless you of course just made eating contests harder on purpose (i did not think about that)