Tardy said..
I dug the paddle alot deeper ..and it was fantastic ..
Yup, fully submerging the blade helps a lot.
Actually, it is the opposite: try to look at the blade: if it is not fully submerged, a big bubble of air appear in the front when paddling, you can see it is awfully inneficient.
One of the benefit of a smaller blade is that they are easier to dig and submerge fully, and cleanly (without dragging lot of air with it), and thus be more efficient.