Ikaruga kinda slow

I'm quite sure its not your system, those specs acceptable for chankast. I'd test it myself but I havent got the game anymore

Well, parts of Ikaruga are done in 30fps. Look at the fps count, and if it says ##/30 instead of ##/60, it means the game is doing it purposely for effect.

Offtopic: I was looking at that processor. Is yours single or dual? I saw the dual for $109, so is it good?