I hate to say this, but it actually got better when Robert Jordan died. He lost control of the series around book 6 and just started meandering, and books 7-10 aren't really worth reading. He picked up the pace again slightly with book 11. Then the Sanderson books (12-14) are excellent; he managed to tie up most of the loose ends, the characters basically read like old Robert Jordan, and the pacing moves well (even a little quickly at times).
Good to know. I stopped at book 7 I believe ... and I see what you are saying, somehow the story was plodding along in the later books - I was still enjoying myself, but I definitely wouldn't have complained if all the cruft was cut out.