Neither of those things did any thing major, another thing I noticed (If you look at the picture you can see that there are 2 characters) It only gets a drop in fps when both my characters jump. I deleted 1 character and tested it with 1 guy and it ran 20-30 frames better. Btw its a direct x 9 game with no motion blur or any special stuff.
Edit: Also the screen is always shaking (not on purpose) i think this is because i have both main characters with the attributes center view.