Comment by robotresearcher

Sure, the computer is doing a lot more. Apps are still responding to key presses or mouse clicks though. Fortnite, AutoCad or Excel: I press a button I want to see the effect. Increasing delay strictly reduces your ability to control the system via feedback.

Even in a mostly passive app like a video player, it sucks if the play/pause button has a long-delayed effect. The tendency is to press the button over and over and feel correctly that we have lost control of the app.