Noting a serious lag - jumpiness in Catalina

Is anybody else on a Mac experiencing the same frustration as I am, in terms of a real jumpy, laggy performance when zooming, panning and rotating your artwork? Used to be smooth as silk before I upgraded to latest version of Catalina.

If any of you know of a solution - it’d be greatly appreciated if you shared that info!

Thanks in advance

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Tom Slater 4 months ago +1

I’m very pleased to check back to announce that Level 2 Customer Support did get back to me today. They informed me that this issue has been elevated to engineering, and they assured me that they’re keen...
Burner Account 3 months ago in reply to krisLap +1

Hello there, I too am having the same trouble. I updated Painter 2018 to 2021 thus unfortunately updating to OS Catalina my computer specs, iMac 27inch 2017 5K 8g 4 core. Same lag as you when navigating...

Tom Slater 4 months ago

BE AWARE BEFORE YOU UPDATE TO LATEST VERSION OF CATALINA!

This video and the numbered rundown I sent to tech support will explain:

PLEASE: Watch this short video to clearly explain the degrade in performance from old Mac to New. Performance on old Mac is superior???

Followup to ticket #616746 – the backstory:

1. Painter 2019 notably had an extremely laggy behavior on new Mac versus old Mac. So I chatted with a Corel Support team member.

2. That support person strongly advised me that I needed to upgrade to 2021, because 2019 was not comparable with Catalina – she argued this case, even when I told here that already running with Catalina on my old Mac.

3. I upgraded with her strong insistence.

4. So now, Painter 2021 ALSO has the same noticeable lag on my new Mac, and performs just fine on my old Mac!

5. Please empathize with my high frustration level, as I’m close to $5k in upgrades here, and I feel this to be a step back rather than forward!

6. Preemtive measures already taken to remove this lag:

• I’ve reset Painter to all factory default settings twice now

• I’ve set all my iOS display settings to “still” (no dynamic display lighting, tones etc.)

• I’ve made certain that absolutely no other applications were running

7. Above, I aded the more comprehensive video to this ticket, to clearly show the contrast between my

old/new iMac capabilities, and how Painter 2021 performance (in terms of panning, zooming and

rotating the image), is much smoother on my old computer!

8. Please understand that this downgrade in performance on latest version of Catalina is much more important to me than accelerated brush performance. The drawing/painting experience in Painter is now aggravating rather than enjoyable - as you’re less focused on creating, and more focused on

visually jarring performance.

9. Thank you in advance for helping me understand how this obstacle can be resolved!

Thx, Tom
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krisLap 4 months ago in reply to Tom Slater

Hi, understand your frustration.

Corel Painter 2019 is listed with macOS 10.13, OS X 10.12 and OS X 10.11 compatibility. Mac OS Mojave (10.14) compatibility added with update v1. I had a tchat with Corel Support with some previous version. With yearly macOS system update, Corel have not the ressources to update each Corel version with the new macOS.
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krisLap 4 months ago in reply to Tom Slater

Hi, what GPU do you have in your New iMac ? The performances numbers you give look a little weird to me : 1774 with a brand new iMac. Painter 2021 is giving me 3164 with a 2009 Mac Pro and a Radeon 580x card. The performance test is not all : I have snappier brushes on my MacBookPro 2013 (1444 score) than on my Old Mac Pro with more recent GPU.In fact more brushes are Avx2 accelerated (Not supported on my Macpro) than Gpu accelerated.

Could you check Corel Painter 2021 / Preferences / performance ? Does the GPU box is checked ?
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krisLap 4 months ago in reply to Tom Slater

I am on Catalina also and do not have lag. perhaps nothing but I notice the empty slots on your too machines aren't located at the same place (upper / lower on graphics).

It look at an issue on your Mac hardware or session.

You could perhaps test Corel painter on a new fresh session to see I the matter is still there.

There is also a way to star macOS with no extensions

To restart a Mac OS computer with extensions off, hold down the Shift key during start-up. Keep holding it down until you see the Welcome to Macintosh dialog box with "Extensions Off" shown at the bottom of the box.
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krisLap 4 months ago in reply to Tom Slater

Their is something about ram slot who need to be paired bank 0 and 2 (iMac 2019)

9to5mac.com/.../
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