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?