Thanks for that, it's interesting. How does one uninstall Chrome? 

Regards

Pete

> On 4 Apr 2021, at 11:59 am, Stephen Chape <chap...@bigpond.com> wrote:
> 
> Got this email from my son today asking for my thoughts.
> If anyone else has had this issue .. your thoughts please ?
> 
> Or if you would like the rest of the article, I can email to you off WAMUG.
> 
>> Chrome is Bad
>> Dec 12 2020
>> 
>> Short story: Google Chrome installs an updater called Keystone on your 
>> computer, which is bizarrely correlated to massive unexplained CPU usage in 
>> WindowServer (a system process)[1], and made my whole computer slow even 
>> when Chrome wasn't running. Deleting Chrome and Keystone made my computer 
>> way, way faster, all the time. Click here for instructions.
>> 
>> Long story: I noticed my brand new 16" MacBook Pro started acting sluggishly 
>> doing even trivial things like scrolling. Activity Monitor showed *nothing* 
>> from Google using the CPU, but WindowServer was taking ~80%, which is 
>> abnormally high (it should use <10% normally).
>> 
>> Doing all the normal things (quitting apps, logging out other users, 
>> restarting, zapping PRAM/SMC, etc) did nothing, then I remembered I had 
>> installed Chrome a while back to test a website.
>> 
>> I deleted Chrome, and noticed Keystone while deleting some of Chrome's other 
>> preferences and caches. I deleted everything from Google I could find, 
>> restarted the computer, and it was like night-and-day. Everything was 
>> instantly and noticeably faster, and WindowServer CPU was well under 10% 
>> again.
>> 
>> Then something else hit me, my family had been complaining about the 
>> sluggish performance of a 2015 iMac since practically the day we bought it. 
>> I had tried everything I could think of – it had a Fusion drive and the 
>> symptoms were consistent with a failing SSD – but drive diagnostics always 
>> turned up nothing. We even went as far as to completely wipe and set up the 
>> computer fresh multiple times.
>> 
>> Then I remembered, installing Chrome was always one of the first things we 
>> did when we set up the computer. I deleted Chrome, and all the files 
>> Keystone had littered on the computer, restarted, and it was so snappy it 
>> felt like a brand new computer.
>> 
>> Yeah, I realize this sounds like a freakin' infomercial, but it worked so 
>> well I spent a whole $5 on a domain name and set up this website even if it 
>> makes me sound like a raving nut.
>> 
> 
> Regards
> Stephen Chape
> 
> Mac by choice
> Windows because my employer knew no better
> 
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