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Comment by NavinF | Hacker News Reader

Have you done an eye exam recently? With 20/20 vision and no practice you should be able to see input lag up to 1000Hz by dragging any UI element around like the presenter does in this video: https://youtu.be/vOvQCPLkPt4

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I definitely see it in the video. But no my computer (like all Macs) does not have a touch screen. So without the aid of directly comparing my finger and the object being manipulated on the screen, I cannot perceive the difference.

What if you just move your cursor in a circle? You can see each frame where the cursor is in a different position. With persistence of vision you should see twice as many cursors on a 120Hz panel compared to 60Hz. I also feel a noticably larger delay in cursor movements when I when I use a 60Hz monitor or phone.

I'm sorry but I cannot see twice as many cursors when I move the cursor in a circle. I see approximately eight of them when I move the cursor as fast as my finger allows me to, regardless of 120Hz or 60Hz.

I do not drag UI elements. I'm still struggling to make my Mac (work notebook) as responsive as my personal i3 notebook.

My perception: current Mac is an oversized iPad without touchscreen

specs?

As someone who regularly switches between a Windows PC and a Mac on the same display, I know what you mean. It doesn't feel as snappy/responsive, I believe probably linked to how rendering is done in macOS (basically something like a PDF composition). There have been a lot of talk about gaming on Macs, but the truth is that to have any chance, Apple needs to fix this laggy feeling. The same game on the same computer just feels way better in Windows than it does in macOS, it is definitely a software problem...

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