Required write speed for video recording

[erland]

Using Canon R5 for video recording I experience an "automatic stop" after 10 seconds due to "slow card write speed" - happens every time. My settings are as shown below ( 4K-D, 119.9 P, ALL-I meant for slow motion. I use CFexpress 128 GB with a write speed of 1050 Mb/sec. Can anyone clearify if the memory card is too slow or if I am setting up the camera incorrectly?
Regards Erland