You can see significant change in speed “ if you format your usb storage device with NTFS file system
follow these steps to format your usb storage device with NTFS file system
For windows xp users follow the method 1,
For windows vista\7 users follow method 2
NOTE :- FORMATTING WILL ERASE YOUR DATA,BACKUP YOUR FILES BEFORE FORMATTING YOUR DEVICE
method 1 (windows xp users)
windows xp users have to download a small free tool for formatting your device in NTFS file system
click here to download hp formatting tool

Select the correct device and select NTFS file system from drop-down menu and press start
now you are done,try copying some files to check the speed
method 2 (windows vista \ 7 users)
Right click on the drive(pen-drive) icon in my computer and choose “format”

In the new box, select NTFS file system from drop-down menu and press start
now you are done,try copying some files to check the speed