It doesnt matter it's too big, I can understand that it can be a bit unreachable, but this is a major problem, actually this is the MAJOR problem, I've never figured that this problem was so common.
I thought that it was a pity but it only happened to me, but when I saw the huge amount of people that suffers it, this is a gigantic problem of the game which is mandatory to be solved whatever the cost is.
Using only 30% of the CPU/GPU capability and playing 15-30 FPS makes me wonder how could we play this game if it uses 100%, I can almost feel pleasure imaging that.
This has to be solved, no matter 2GB+ patches, no matter it takes 4 months, no matter what.