Gas (UK) delivers heat much faster than electric does. This is part of our problem in changing over from “conventional” fuels to electric, and the reason why I remember my mother’s gas eye level grill so fondly. Cheese on toast under a gas grill was so much better than you can ever do under an electric one. Recent fan ovens help, but you’re still limited to the amount of KW compared with the insane calorific value of fossil fuels per unit of volume.