NFS slower than Samba? (4 replies)

NFS Server = PogoPlug E02 Debian Wheezy bodhi, latest kernel
exports:
/mnt/usb 192.168.3.0/24(rw,fsid=0,no_root_squash,insecure,no_subtree_check,async)

NFS Client: Windows 8.1
rsize 32768, wsize 32768, Enable locking, Enable caching, Enable remote write caching, NFS 3.

NFS transfer speed
write to PogoPlug = 18-20 MB/s
read from PogoPlug = 23 MB/s

Samba
write to PogoPlug = 27-28 MB/s
read from PogoPlug = 29 MB/s

Used to test 700 MB file for transferring.

I though NFS should be faster than Samba. What's your experience? Do you know any other tweaks that I don't know?