I hope you played more than the first level where you land on Geonosis, because on that first level, it's meant to be an introduction to how the game works, for those who didn't play the demo (why didn't they just add a real
training level on Kamino? :/). The enemy Battle Droids are severely dumbed-down so you don't get yourself killed in your "training" mission. If you notice they're not even carrying their standard blaster, but the Clone Trooper's dummy rifle.
Give it a chance man!