My frame rate is really high generally except during the Titanium levels 17-19 at random points. Also sometimes the sword hits both affect when I swing and when the enemies swing as sometimes I died when I shouldn't or live when I shouldn't of.
Of which part may I ask? The sword one would be difficult as it seems to be random when it happens. The fps drops would require me to not suck in order to get back to level 17 and above.
