I am planning to get an external storage for Ventoy use. My current random usb 3.1 stick writes .iso-files with only 10-15 mbps only. I found this webpage for usb stick speed comparison: https://ssd-tester.de/usb_stick_test.php

The fastest usb sticks writes 800-1000 mbps in the crystaldisk-test.

If you have personal experience on this, please recommend which approach is better.