Mouse slowdown and jerkiness severely frustrating.

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Level 1

9 points

Mouse slowdown and jerkiness severely frustrating.

My iMac has become almost unusable. $3000.00 and my 8 year old Dell at the office performs better, because every time I download something, from any website, using any browser, the mouse becomes stuttering and jerky and slow.

I'm betting it has some issue with bandwidth or I/O or whatever, beyond my expertise.

I have used the Magic Mouse and a Logitech, and the issue persists. I don't play games, or use CPU heavy apps.

My iMac is a 27 Inch Retina 2019 model, running the latest Catalina version, 10.15.5

3.6GHZ 8 Core i9 CPU, 48GB Ram.

iMac 27″, macOS 10.15

Posted on Jun 10, 2020 7:27 PM

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Answer 1

den.thed

Level 10

82,342 points

Jun 10, 2020 7:55 PM in response to Cuttock

What browsers and how many do you have open at the same time?

I suggest running EtreCheck and posting back here with the Report.

https://www.etrecheck.com/

FWIW like your 8 year old Dell, my 8 year old Mac has no issues running Safari in any of the latest macOS’s.

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Answer 2

Cuttock Author

Level 1

9 points

Jun 10, 2020 8:16 PM in response to den.thed

Hi. I am using Latest Safari version. Occasionally I use Firefox. Rarely use it but tested downloading stuff with it and same issue.

Mot sure what Etrecheck did. I see stuff about minor or major issues, other things require purchase.

Nothing in the Major or Minor issues show mouse problems. Or solutions.

Thanks anyway.

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Answer 3

Cuttock Author

Level 1

9 points

Jun 10, 2020 8:29 PM in response to Cuttock

To let you know, you will see some apps that may raise a flag in re: CPU/RAM possible usage "hogs".

Like Carbonite or VMWare Fusion, but these rarely run, and the issue has persisted long before I purchashed these apps.

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Answer 4

Cuttock Author

Level 1

9 points

Jun 10, 2020 8:27 PM in response to Cuttock

Mouse slowdown and jerkiness severely frustrating

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Answer 5

den.thed

Level 10

82,342 points

Jun 10, 2020 8:23 PM in response to Cuttock

You do not need to buy anything. If you want or need help, post back here with your EtreCheck Report.

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Answer 6

den.thed

Level 10

82,342 points

Jun 10, 2020 8:43 PM in response to Cuttock

CleanMyMac is bad news, uninstall it as per the developers instructions.

Startup in Safe Mode, followed by a normal restart.

Then run and post a new EtreCheck Report.

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Mouse slowdown and jerkiness severely frustrating.

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