WAAS slows traffic down

Hello -
We have WAAS in a test lab and we have configured it using policy-based routing. We are running the standard test (HTTP to get a file), but when we browse to get the file, and click to download it, the transfer on a FastEthernet port starts off at 20k, then falls to nearly zero.
If we remove the PBR, the file (70 MB) tranfers very quickly. There are only two hosts on this testbed.
The WAAS is showing "compression" and such for HTTP.
Please advise! : )

It's just staged right now, so it's all in one room with FastEthernet connecting them, so the latency is probably 1 - 2 ms. We are mostly just testing policies and stuffs right now.
I was planning on putting some rate-limiting between the routers to slow traffic down to see the WAAS improvement. You think I need this now?
I just found it kinda hard to believe that even with 100 MB between the routers, that the WAAS would slow traffic down to as low a 1k sometimes.
Thanks for the help!!! : )

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