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display – Out of focus scroll lag issue, on all screens

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When I have multiple screen connected on my Macbook '14 M1 Max 32gb, I have input lag on ‘out-of-focus screens'.


When I start to scroll in an out of focus (not active) Microsoft Word window on any screen (including the notebook screen), I experience it having lag. I didn't have this on my MBP '13 M1 Pro.

I tested with the Internal HDMI and with an USB-C to HDMI. But the problem also occurs on my notebook screen.

Does anyone knows how this problem occurs and maybe how to fix it?

Kind regards,


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