That rush mindset @nora_barnes is how my uncle's deli got in trouble. They started slicing too fast to handle the lunch crowd, messed up the thickness on a huge order of pastrami, and had a whole corporate client cancel their weekly order. Speed just cost them a steady customer.
Your line about rushing never paying off is so true. My friend hurried through a lamb leg and butchered the silverskin, ruining the whole cut. He lost money and learned to slow down the hard way.