Gigabit is limited to around 115MB/s, so those look normal.
With 10GbE and when transferring to Unraid, the first few GBs are cached to RAM, them you're limited to device write speed, and with an Unraid array that means the speed of a single disk, same for read speed, so those also look normal, for better speeds you'd need to use pools or SSD/NVMe devices.