Having the same issue but I have AMD X4 at 3.1 GHz and a GTX460 OC version. At most I got it to use near 60% of my GPU during Cloud's ex burst at the very end of the ex burst and it does seem that some maps are able to more fully utilize the GPU than others. Incidently, these maps are also the ones that of course give me the highest FPS (Planet's Core and Lunar Subterranae). These maps run around 50% GPU load on average-ish and I have a somewhat steady FPS around 20 although still nowhere near close to what I should experience given that I barely use 2 out of my 4 cores (CPU load is around 30%) and at most 50% GPU in most parts of the game.
FPS in Crisis Core is also as bad, but whereas Dissidia is meant to run at full speed at 30 Crisis Core runs at 60 so that's even worse... I should at least be able to get steady 40 for both with my spec.
FPS in Crisis Core is also as bad, but whereas Dissidia is meant to run at full speed at 30 Crisis Core runs at 60 so that's even worse... I should at least be able to get steady 40 for both with my spec.