JDeos: I've managed to solve most of the game problems with resolution and fps drops, but still i'm not able to make the game work with a gamepad, i've tried emulating an xbox360 controller but the character keeps moving to the left and the game doesn't let me calibrate the gamepad.

MaxFulvus: I know it's not the solution you want but why not simply use a keyboard and a mouse ? The game works like a charm without a pad.

If you really want to use a gamepad, check this topic here.

JDeos: Thanks for the help, i'll try both :)