okay this is what i did
opened Cheat Engine and used the speed hack in it on Blizzard Downloader
but instead of making it fast it only made the tracker not respond...i didnt try it on any other downloads cause i thought it would happend the same;ill try it on other downloads soon i guess,but meanwhile... if anyone could see if there's a way to get the Blizzard Downloader faster, i would love him / her so much :P