Thanks for playing! I'm for sure going to make the order times more lenient, as well as introduce some in-game difficulty sliders so the player can choose how frantic they want their kitchen to be.
One of the next features will be a menu builder, so you can decide what dishes you wish to serve (and thus only worry about those ingredients). On top of that ingredient/storage management is definitely something that will happen soon thereafter, with there being a "back room" for your general storage and limited space in the kitchen for ingredients you actually wish to use.
Thanks for the pointers and suggestions! Your feedback helps the game grow and be better :)