Hate to say this and ruin your day, but Dragonforce utterly suck live.
It's all well and good to put together snazzy sounds in the studio, but unless you can play them accurately more than once, it just ain't good enough.
If you want some bands that actually sound better live than on the albums, here's a few.
Fear Factory
Rage Against The Machine
Slipknot
Machine Head
AC/DC
So yeah. And Dragonforce all pretty much sounds the same. No variation in pitch and notes, really.