Debian Configuration :: Direct Ethernet Rsync To NAS Very Slow (74kbits)

So I have a GoFlex NAS driver, which according the specs has a theoretical maximum performance of 100 MB [URL] .....

I connected by ehternet to my PC (GNU/Linux, Debian 8 ) to do a backup.

I mounted it with cifs:

Code: Select allmount -t cifs "//goflexhome.local/GoFlex Home Personal" /mnt/gf/per/ -o credentials=/root/gfpass,uid=1000,gid=1000

And then tried rsyncing my home folder.

Code:

Select allDIR=/home
BACKUP_FILE=/mnt/gf/per/bck2016/

FLAGS=" --archive --one-file-system --acls --xattrs --numeric-ids --fake-super --progress  --human-readable --ignore-existing --log-file="backup.log" "                                                                                                                 

FLAGS+=" ${DIRS} ${BACKUP_FILE}"

rsync ${FLAGS}   

I then used iptraf to check the performance and I get miserable results (from the PC), even below 1 MB:

total 74.7 kbits
in 30.4 kbits
out 48.5 kbist