Big Sur issues with iMac Pro?

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Created May ’21

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What's the latest on this issue of Big Sur slowing down or creating havoc with iMac Pro's? I'm running a late 2019 iMac Pro, 10 core, 64 GB RAM, Radeon Pro Vega 64X 16 GB, 1tb, still running Mojave. The "upgrade" to Catalina caused crashing, slowness and wasted time, so I rolled it back to Mojave and have not had any issues. Should I stay with Mojave or perform the upgrade to Big Sur? Thanks

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pushka OP

May ’21

I'm sharing an iMac Late 2014 (the oldest computer that is said to work with Big Sur)

It was very slow so we fully wiped the computer and installed a fresh copy of Big Sur, and it was still very slow, laggy etc.

We left the computer on doing nothing for 2 days and now it's fully fast as it was before - there are 2 days of background update processes that the mac doesn't tell you about...

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