devil_lucifer & gibalah: JDownloader and other tools that people use aren't supported (as of yet), so this may cause the difference. Also in terms of "recognition", people don't recognize BigFile.
NOTE TO ALL: For this weekend ONLY we will increase speed to 800 KB/s for anonymous and 1.6MB/s for free users. However, wait time will be doubled. Let me repeat myself:
We are testing it for this weekend ONLY!