I'm using a 2017 MacBook Pro with HDMI (although it said 4K at 60Hz) which caused significant lag (z failed.
I have a USB-C to DisplayPort cable and now I have perfect quality and no noticeable lag. Specifically, I found https://www.amazon.com/gp/product/B075V27G2R ("USB-C to DisplayPort Cable for Home Office (4K@60Hz, 2K@165Hz), DisplayPort-to-USB-C- Universal Rugged Aluminum Cable [Thunderbolt 3 Compatible] for MacBook Pro, MacBook Air/iPad Pro 2020/2018, XPS 15/13").
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