Inserting Pivot Charts (OLE Object) into Publisher

I create a weekly email report using publisher 2007. In this report I insert
pivot charts as OLE objects from Excel 2007. This is very resource
intensive, utilizing up to 1gb of memory just for Excel when the copy and
pasting is occurring. Using the OLE object allows me to resize the chart and
maintain appropriate aspect ratios in the publisher template. But the
resource issues and the amount of time it takes to do this as my system
freezes up is killing my productivity. Any suggestions?

I'm using a Lenovo T60 with 4gb RAM and a Centrino Duo processor. I am
running the latest SP of Windows XP Pro.