How do I make it so that it only checks and downloads updated files not
everything else. It searches over 100,000 pages and it takes quite a while, I
know not all of those pages have been updated so I don't get why it is
checking them.

Also, say a file is updated or deleted and I do an updated with HTTrack does
it update/delete on my copy? I would really like it to just make a sperate
file with the update not replace.