I'm about the same I think. Hard to judge, really, since the concept of "page numbers" isn't very applicable. I did have to adjust my habits. I started to read to the end of the page, and then press the page button, but that was a little bit slow. I've found a fairly comfortable speed which allows me to scan the last line while pressing the next page button.
I don't really know what I'd be called in terms of reading speed. I got my Kindle on Nov 23, and have read Lawhead's "Merlin" (500pgs in paperback), about 25% of Lawhead's "Arthur", "Treasure Island" and one of the Tom Swift novels (those last two were both downloaded from manybooks.net).