Lightroom Classic CC on 2017 iMac 5k: performance?

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thd76 New Member • Posts: 11
Lightroom Classic CC on 2017 iMac 5k: performance?

Hi everyone,

I'm about to buy a new 2017 iMac 27" 5k from Apple directly with following spec:

4,2 GHz Quad‑Core Intel Core i7 (Turbo Boost up to 4,5 GHz)
40 GB 2400 MHz DDR4 (ordering 8 GB from Apple and upgrading 32 GB more myself)
1 TB SSD
Radeon Pro 580 8 GB

Now I read on some pages, that on 5k iMacs, the performance of the new Lightroom Classic CC would be terrible with lots of lags in browsing and developing photos. Of course, I don't want to buy a machine not capable of working with speed in Lightroom, moreso because now I have a pretty decent Win10-machine and only want to go back to MacOS, simply because I love the OS.

So can anyone confirm, if the new 2017 iMac 27" 5k runs with Lightroom Classic CC in good speed or if these bad reports about lot of lags in photo editing are true?

Thanks for any help!

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