Re:Computer latency: 1977-2017
by 0xcde4c3db on Monday December 25, 2017 @11:57AM
(#16004786)
> Most test and site you play seems to show our maximum response rate to click at somewhere between 200ms to 300ms, with most scoring 250ms+ range. And yet we can still feel the difference.
I think when you interact with a UI (or a physical object, for that matter), you're projecting an expectation into the future relative to your sense perception of the action. So the ~250ms delay applies to both the action and reaction, thereby effectively canceling out.
>Hopefully Apple will lead the pack again.
Like when they made a calculator that fails to calculate correctly if you push buttons too fast?
https://news.ycombinator.com/item?id=15538666
Definitely applicable because it's talking about UI latency... and Apple.
Most test and site you play seems to show our maximum response rate to click at somewhere between 200ms to 300ms, with most scoring 250ms+ range. And yet we can still feel the difference. And this latency problem sometimes causes me breathing and heart beat problems when things dont align with what I expected to in response time. Sometimes doing things too quickly isn't always the best option either.
It is the same with Apple's Retina Display, 20/20 eyesight, viewing distance etc, but given those condition you can still feel the difference between a 300ppi and 400ppi.
And the iPad ProMotion is really buttery smooth, it still isn't perfect though, I am not sure what frame rate do we need to a point where we cant tell the difference.
I wish latency are taken more seriously in UX and design. Hopefully Apple will lead the pack again.