Will a pcie adapter slow the readwrite speed of the ssd?

Will a pcie adapter slow the readwrite speed of the ssd? nvme pcie slot NVMe SSDs are much more performance driven compared to SATA SSDs By leveraging the PCIe bus, NVMe SSDs have theoretical transfer speeds of up to nvme vs m2 slot difference NVMe are pretty tiny slots for directly plugging in storage, and SATA was what came after IDE cables -PCIe tends to be

nvme vs m2 slot difference PCIe x4 interface Up to 3,3002,900 MBs NVMe compliant with APSTASPM power management support

nvme m2 slot laptop SATA is just a complete wasted slot ; all slots should be dual NVMESATA capable, or NVMe are pretty tiny slots for directly plugging in storage, and SATA was what came after IDE cables -PCIe tends to be