disable rosetta

use the last section of this article to turn off Rosetta for that ONE application, if possible. if not possible, you will need to obtain an updated version of the Lightroom software. Here is an example of what that looks like:

Look in this article under the heading "Does your App need rosetta?"

If you need to install Rosetta on your Mac - Apple Support

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ha_we_marknesse wrote:

In my (Dutch) Lightroom version it is written: Rosetta emulation mode on. Is there a simple switch to turn it off?

I don't have the current version of Lightroom, but here's the general idea.

if you disable rosetta emulation, the software that is using it will not run AT ALL.

Check for version an updated of Lightroom that supports Apple-silicon Mac processors DIRECTLY, or is sold as "universal", which means it has both intel binaries and Apple-silicon binaries inside, and the correct one is selected automatically at run-time.

I don't think it's a good idea to disable Rosetta system-wide. I also don't see why you would want to do that.

If you're on an Apple Silicon Mac and you're talking about an Intel-only application, Rosetta 2 is the only thing that would let you run that application. If you disabled Rosetta 2 somehow, you would not be able to run the application at all. If your goal was to get an Apple-Silicon-native version of the application, you would need to get one from the developer … disabling Rosetta 2 wouldn't magically convert an Intel binary into an Apple Silicon one.

If you're on an Apple Silicon Mac and you're talking about an Apple-Silicon-only application, Rosetta 2 would not come into play. It might be on the system, because of having been needed for another application, but the system would just run the Apple-Silicon-native application directly.

If you have an application with a Universal 2 binary that contains both Intel code and Apple Silicon code, you can go into the application's Get Info box and choose whether to run it natively, or to run the Intel version using Rosetta 2. No need to disable Rosetta 2 system-wide. Just set your preference for that application via the user interface that Apple has provided for that purpose.