20 GB ~24h
But, during the upload I have changed the network I was connected to. First network, despite I thought I wasn’t so bad, took ~20h for 7GB, the new one is taking much less time (still a bit slow, but understable), it is taking the rest ~13GB in ~4h (it seems it is going to finish in the next hour).
Now I will proceed with the big chunk of files to sync. I will let you now if I have any problem. In the meanwhile, please, put this on hold, it seems it was my mistake.
Thank you for your quick response.