My computer copy 2GB data in 10 mints how get hi speed it ?

Is the 2Gb made up of lots of files or one big block of data.
This makes a huge difference to the reported speed..

The more available Ram you have the faster you will right to the USB. Items copied to a USB are read from the Hard drive into RAM then written to the USB. Quit all open programs and see if your speed improves.

And:
Remember that a USB flash drive is not as fast as a hard drive however it should run faster than the speed you stated in your question.