Also, run this command on the existing ESXi host to see if the SD card is being identified as a SSD:
esxcli storage core device list
The output will include information on whether the device is identified as a "SSD" or not.
Also, run these commands and post here to help us see which driver is being used for the SD card storage:
(Will show storage adapters and associated driver) esxcli storage core adapter list
(Will show storage paths and which adapter is associated with that path) esxcli storage core path list