Sandisk extreme pro 1tb slow with type c USB 3.2 gen 1

Hi guys i bought this week an extreme pro with 1tb.
I connected to the type c ( usb 3.2 gen 2 thunderbolt 3 40gbs) usb of my hp omen dc1019nl, but the write/read speed is only 400 mbps. I tried also on the normal usb and it is the same 400mbs. It is like on the type c port it works like normal usb.
What i could do?