Vista - Windows Live Mail and Synchronization

I have used outlook express for many years and recently switched to Windows
live mail on my new machines with Windows Vista.
I have a desktop and a laptop, which I synchronize periodically using AllWay
Synch. WLM creates a large number of files like sqm, individual eml, and a
lot of files in recovered items folder; which waste a lot of time during
synchronization. because apprently all of them are continuously updated and
tell the synch program that they are updated files. Synchronization was much
faster with Outlook express.
How can we reduce this workload on synch program? Are the above mentioned
files important in synchronization, to keep the same set of emails on both
machines.