The team blog (
specifically this article) indicates that the team have only really tested up to 10Gb in a single folder.
From my own experience with folders under this size (a pictures folder of 5GB and a music folder of 9GB), the p2p sync takes a long time before it actually appears to start copying files - once it starts, files are synched in fits and starts.
For non-changing data (such as pictures), the initial synch appears to take a long time, but unless you're desperate to synch, perhaps you'll just need to leave it to do its magic for the moment until the team get things going quicker.
Or perhaps start with an empty folder, make sure it is synching (synching nothing, that is ;-)), and then move the pictures/files in in small chunks (1GB at a time?). Not sure whether this will get it going a bit quicker, but may help.
As Stephen says, nothing we can do directly to speed it up - just need the Live Mesh team to do some work on the performance (which I believe Ben had indicated they were).
Glyn
