I purchased a new M1 Mac (8gb ram) in Febuary, and since then have had a problem with lagging due to high memory usage. Almost always half or more 4+gb is allocated to WindowServer.

The problem is exacerbated any time I plug in OR unplug my external monitor.

I've read this thread, which indicated that this was a bug back in OS X 10.x

Should I be worried about this specific computer being a lemon, or is this an OS X bug? It's quite annoying because it makes my computer essentially unusable for 3+ minutes every time I switch what display I am using.

Activity Monitor

  • Is chrome your browser using all the non window server memory? You’ve got some big leaks for sure.
    – bmike
    May 18, 2021 at 1:06
  • All the browser memory items shown with the exception of Google Chrome Helper (GPU) and one of the youtube instances are safari.
    – zephyrus
    May 18, 2021 at 1:21
  • As you memory pressure is now green the current state is probably OK and might just be caching - what matters would be when the memory pressure is red what does activity monitor show
    – mmmmmm
    May 18, 2021 at 9:18
  • 1
    I have the exact same problem.
    – gagarine
    Nov 4, 2021 at 21:32
  • 1
    I have still not found a solution to this problem, unfortunately. Intend to take in to apple store.
    – zephyrus
    Nov 8, 2021 at 19:31


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