Performance issues? No. Any modern Mac is perfectly capable of driving a 4K display. Any if there was some slight performance hit it would be far far outweighed by the screen not looking like absolute crap like a 108ppi display would.The 2K version of this monitor is the right PPI. It’s 108 PPI, which is exactly the same spec as Apple‘s last thunderbolt display from years ago. It will work better with MacOS than the 4K. And you get a better refresh rate. Yes, slightly lower resolution, but that’s something you probably will notice less over time compared to possible scaling or performance issues.
I know there are issues around pixels not being perfectly aligned at certain resolutions, but a 108 PPI screen is barely usable today.
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