I didn't notice it was the same vid, but there's a slight difference in how she/you wraps the knit sts from the combined that's easy to miss until you look at it a couple of times.
As long as you think of decs as right and left leaning rather than ssk or k2tog, it shouldn't be too confusing. Most patterns are not written for english style, but Western where the leading leg is the one in front. Eastern has the leading leg in back and people who hold the yarn in both right and left hands end do knit that way.
Knitting faster is just a matter of what you're used to and how productive your stitches are - smaller and less hand movements seem to be the key to that, whether you knit english, continental, eastern, portuguese or whatever.
sue- knitting heretic