Any meaningful amount of work is either going to be done “immediately” (see pretty much every spreadsheet in existence except for that one on the network drive) or it will take a perceptible amount of time. Giving progress in 4ms increments instead of 8ms isn’t really going to affect the perception of the task.
There are definitely real world tools that take time - pumping petrol/gas isn’t an instant action, neither is cooking.
Also - the device that I would consider quietist in my life has a sub 1hz refresh rate, and an 800MHz cpu with a 3 week battery life.