PPCGeeks - Activesync SLOW on WM5 (WM6?)

A few months ago, I tried upgrading my Verizon XV6600 to a Palm Treo 700wx running WM5, and to a Sprint Mogul running WM6.

In both cases, Activesync runs like a DOG.

I have 2600 contacts and 5100 calendar items, plus notes, etc., and I am running Outlook XP/2002 on Windows XP. I am running the latest version of Activesync on Windows XP.

To sync all of these items to a hard-reset XV6600 takes approximately 6 MINUTES.

Doing the same thing to either of the above new phones running WM5 or WM6 takes about 10 HOURS.

Can anybody tell me why this is happening, and more important, if there is any fix for this?

Thanks!