Same here, intermittently. Yesterday my broadband was out all day, so I cranked up my 56k modem and dialed in. Once it renegotiated to 48k, it was better that iHub has been, at times, today.
While it mentions marketing, it's not directly tied to the delivery of ads. It's mainly statistics - lets the marketing geeks see what pages are most popular, the effect of using different widgets and gizmos, etc.
Occasionally I see reports of slowdowns with google analytics but it's usually transient.
Note to Dave - we should consider hosting the google analytics script locally. That's probably the most reliable way to speed it up.