A SPEED SLIDER!!!
Combat happens too fast on my comp (ran about right on my friends) even with 8x Anti-alias and 8x anti-sotropic...  The people run too fast...  it just messes up the pace of the game and makes it feel jarring and less immersive.  
This is about the biggest gripe I have that can be fixed easily... the others are major flaws that I percieve in terms of voice-acting and game design (seriously, go back to <img src="/ubbthreads/images/graemlins/div.gif" alt="" /> and take another peek).  
Otherwise, go full steam ahead with  <img src="/ubbthreads/images/graemlins/div.gif" alt="" /> II and LOOK BACK AT  <img src="/ubbthreads/images/graemlins/div.gif" alt="" />!!!