That's what I was alluding to, above!
A mate of mine caught a nasty virus that messed up his thyroid gland. He ended up with a permanent heart rate of 180 bpm, felt like he was going to die, couldn't sleep, was agitated all the time, was dripping sweat and the weight fell off him so quickly that he was eating 6 huge meals a day and still couldn't stop getting thinner. Just like being a speed freak in fact ...
He eventually had his thyroid gland 'zapped' to bring it back to a healthy range of operation, went back to eating 3 normal-sized meals a day and his weight settled back to its old level.
So, if you don't mind being a speed freak for the rest of your life, can put up the symptoms mentioned above, plus the mental health damage that would almost inevitably follow - you know what to do!
Alternatively ... You don't need to eat 'less', you need to eat 'different'. If you want to, you can eat huge quantities of many vegetables and not take in that many calories, as long as you don't accompany the veg with similar amounts of cheese. meat, bread and so on.