[Vista] Slowing USB transfer

Ok so I am not sure if this is a fixable problem or if it’s something I am going to just have to deal with.

So I am transferring a huge folder (about 1GB) to my new USB stick and at first the speeds are good (150 Kb/sec) but they just keep slowing down. It’s now (still transferring) 31 KB/sec.

And earlier it went all the way down to about 10 KB/sec

Help? :*(