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screen extention
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iMac M3 slowing down...
I've iMac M3 chip, Ram 24 GB, late 2023 running Sonoma 14.7.2 and a week ago I added a DELL Monitor P2423DE 23,8'' 2560x1440 IPS, USB-C, as an extension. Sadly I realized that my iMac slows down and lagging and many times flashing. I don't know why is this happening or if it can be fixed but...