I don't just "Don't like them". I dislike them.
First off- I don't like "Epic metal" too much. And all their lyrics includes "So far awaaaaaaaaay!" and something about dragons owning humans. And cold winters.
Second: The instrumental isn't music. It's just a random pattern of tapping. Not even a scale or note to be found. Look at concert records with Dragonforce, and I promise you, you'll hate them.
heres some youtube song of Trough the fire and flames
http://www.youtube.com/watch?v=2PtsLFiob0o