As far as laptops go, the one I use is pretty hefty. Quad Core i7, 32gb memory, all SSD drives, Quadro video etc. I'm still running windows 7 as I just don't care for the new OS's (and assume that they require more overhead to run anyhow), all drivers and apps are up to date. Just seemed to have the one antivirus that trashes the ingress of data. Oh.Well.
My office neighbor is a production house, working with gigantic files like this day in and day out. He described an editing workstation they'd built (more memory than God, more cores than an oil company) and realized afterward that there was some combination of components that also hammered this sort of process, and that an Acer laptop was much faster at uploading files than their race horse. Go figure.