Ask her to go to internetfrog.com (it has to be from her computer), where she can run a test to see the speed of her broadband, and also how fast she should be able to download and upload to the net. I've only seen problems like that with wireless connections though, and you say that hers is wired, so I can't think of anything else.
She could also contact her internet Service Provider to be sure that everything is right with them.
Sorry can't be of anymore help