There seems to be a delay of about 0.5 secs between real life and the image presented on screen. Is this correct; is there anyway to reduce this lag?

Unfortunately, the software is doing a LOT of calculations - that is the reason for the delay. There is nothing you can do about that. A 0.5 second delay is actually quite good.

More.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.