I ordered the U2723QE to be used on my MacBook Pro 2017. According to the MacBook's specs, it supports two external displays at 3840x2160 60Hz. After I connected the U2723QE (using the USB-C to USB-C cable as shipped with the U2723QE) it immediately works, but feels quite laggy. System Report reveals that it's running the 4K resolution at 30Hz instead of 60Hz.

More details: Macbook Pro 2017 (two Thunderbolt 3 ports), macOS Monterey (12.2.1).

What can I do to get the full 60Hz running?