One of my problems is I also keep getting side tracked. I don't know about you, but I get going and am whizzing along then something (usually someone) comes in and interrupts me and then I can't get back in the groove.
Can you spot the mistake?
Another thing that's slowing me is all the marking, and the fact that I can't waste fabric, so when I sew a corner triangle using a square, of which there are a great many in this pattern, (not sure the name of it, but the same technique as half square triangles)I have to sew a second seam to get the half square triangle. All of that is eating up my time, but they're looking pretty good