Originally Posted by
Millie
I have.
I can level through questing 1-60 in about 12 hours and I consider myself extremely slow, there are people who get way further in less time. In 12 hours you're getting 6 invasion zones. Unless you're getting 10 levels per zone (protip: You're not) then you're leveling slower, just because it's simple and AFKable does not make it super efficient. You can stop questing when they start and hit them for a nice boost then continue questing after, but replacing questing or dungeons with them is only going to slow you down a lot.
This also doesn't account for this undocumented mystery 15-60 quest exp buff people have discovered recently, you can read more about it here.