News Raspberry Pi CM4 Upgraded to 128GB of Onboard Storage

"Even the best Raspberry Pi microSD cards get between 30 and 40 MBps."

The limitation must come from the RPi (uses USB 2.0 for the SD card?), I have several perfectly normal microsd sandisk A2 V30 cards and they achieve 90 MBps reads and around 50-60 MBps writes over USB 3.0. So the bus is the culprit.