Hi slowspeed.
Try to optimize your browser to make sure that this slowness is not contributing to your issue. Check out the link below for info on how you can do this:
http://windowslivehelp.com/solutions/accounts/archive/2009/03/03/How-to-optimize-Internet-Explorer-browser.aspx
I suggest that you also close all the other programs that are running aside from your e-mail, and verify if you’ll still encounter this slowness.