I bet the "underpowered CPU" is way faster than the supercomputers of not that long ago. Way more work, as in, turn up the volume or display another thing on t

I bet the "underpowered CPU" is way faster than the supercomputers of not that long ago. Way more work, as in, turn up the volume or display another thing on the screen? How do you explain that not that long ago, when CPUs were slower, interfaces were faster?