Ubuntu Guide posted a tutorial about speeding up Chromium downloading in Ubuntu with PyAxelWS Accelerator

PyAxelWS Download Accelerator is a Chromium browser plugin for Linux which is a clone of pyaxel that accelerated downloads, persistent reconnection, resumable downloads, download speed limiting, and download progress indication. To make the accelerator work need a Python script running as server and a Chromium extension running as client.

  Speed up Chromium downloading in Ubuntu with PyAxelWS Accelerator