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From what it looks like here, the problem seems to be the optimization for the AMD Navi 5000 series GPU's in macOS. So if that can be relayed to the dev team in charge of that to fix as soon as possible, would be great.
 
It is not the case that you can expect the same performance in Windows and MacOS on the same hardware. MacOS uses openGL which is a less polished and slower video standard than Windows' DirectX. That's why our published requirements for this an all our games are higher on Mac than Windows.

Which is no to say that CK3's performance on Mac cannot be improved, just to be clear!

Yes, I don't expect the identical performance, but it's reasonable to expect similar performance (and this is largely true on other Paradox titles), particularly for specs that are definitely above the recommended ones. Looking forward to further Mac optimizations on this title! Thank you for looking into this!
 
MacBook Pro 2019 15inch top spec with dedicated GPU and above Paradox recommended specs. As others have said it runs slow and horrible FPS across all settings low medium or high it makes no difference.

The game is optimised very poorly for Mac.

Yet my PC Laptop from 3 years ago with worse specs than my Mac runs the game like a dream. It is poorly optimised for Mac and having low settings or high makes no difference to its speed or FPS.

Radeon Pro 560X 4 GB
2.3GHZ i9 Processor

Runs game borderline unplayable across any spec low medium or high. They have clearly a long way to go as far as optimisation is concerned. I've no issues with EU4 and other titles but CK3 is unplayable on my 2019 top spec Mac which exceeds the recommended specs. Heard this story many times since release. The game is horrendously unoptimised for Mac.

I'm not pretending Mac is some paragon of gaming so I get it but they do need to work on it if they intend to support Mac as well.
 
It is noted that the game runs flawlessly while in bootcamp. It is not a hardware limitation by any means. I can only guess that Ck3 is not optimized for the 2020 IMAC with the AMD 5700XT.
 
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macbook pro 2012
12 ram
intel graphics 4000
 
View attachment 630990

macbook pro 2012
12 ram
intel graphics 4000
This is a different problem than this thread is about.

No Intel video system is supported for this game. Please seek a refund from where you got the game.
 
I uninstalled CK3, updated OS X to Catalina, and reinstall CK3. Now it works a lot beter in OS X. It even loads a lot faster. It could take 3 min to load up before (no SSD) but now it takes like 30sec.