Can you use an NVMe SSD on an older motherboard via a PCI

I am unable to use my 2nd SSD i bought I bought a second 2 TB 980 pro sdd and it shows up in

NVMe SSD 50% slower on socket 1

nvme vs m2 slot An 2280 solid-state drive , 22 mm wide and 80 mm long ; An 2280 solid-state drive , 22 mm wide and 80 mm long · Motherboard via one of: PCIe

nvme m2 slot NVMe SSD to fulfill the need of performance Hyper socket that supports PCIe Gen4 x4 while socket is capable of running PCIe Gen3 x2 and SATA3 mode