I don't think the viewpoint has much to do with a sink rate, what model 747 are you using, I would suggest the POSKY 747 series, they are truly great aircraft and I find landings very easy - I just did a visual into SXM
in the -400 and nearly clipped the fence (Not bad for my first time huh????), I was at flaps 40, and was considerably heavy fuel wise and I didn't sink at all.
Could the weather conditions have played a part, also if you have to raise the nose considerably in order to stay afloat try advancing the throttles a tad when you are further out with a lower attitude.
Perhaps your 747 model is not really that good (If it was the POSKY one it would be fine) and has inaccurate speeds, you could just try landing a bit faster and when you are a few miles from the threshold slow her and ease her in gently.
Lifes a train racing towards you, now you can either run away or grab a chair & a beer and watch it come - Phil