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Did you happen to write down what you tweaked? I use an MBP M1 with an external 4K, and I've had a sneaking suspicion that my keyboard inputs are somewhat delayed. Just hasn't ever felt quite right....

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You can use slow-mo mode on your phone camera to confirm your suspicion (or use an app[1]). Just record yourself pressing a button with your keyboard in front of the screen in slow motion.

[1] https://apps.apple.com/us/app/is-it-snappy/id1219667593?plat...

yeah It was silly, the displayLink drivers of the docking station had to get an update specifically for those models. In my case there was no mistake possible: there was a solid second between typing something and actually see the text on the screen. Unusable as is.

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