You been here for a long time my friend, thanks for responding.
Usually animation i do in these .mov are done 4 sec in. (with motion blur) , I notice that the render takes longer during the beginning. But then nothing is happening for the rest of the the clip so the render moves faster. (Render time between 3 to 6 min)
This render with the pin on a map had animation done within 4 sec, but the render took long on every frame, render time for that particular 15 sec .move was like 29min.
Layer Styles are re-calculated on every frame it seems.
Regards,