I agree that OPs scanning time seems very slow, my collection is around 93000 tracks and takes about 5-6 hours to scan in from scratch. I have Moode running on a Pi 3B+ connecting to my file server with NFS over Wi-Fi.
NFS is a more efficient filesystem protocol, you're likely to get a better I/O rate over NFS.... and yes, noone should be running Windows 7 for server duties.
NFS is a more efficient filesystem protocol, you're likely to get a better I/O rate over NFS.... and yes, noone should be running Windows 7 for server duties.