i finished out the lower realm soul forge masteries and bestiary and everything in between i can think of
ended up at 5 septillion decillion power, 5000 martial will, 10700 force tempering
there is a little bug with soul forging where you can only forge new items after reincarnating after having beat the final battle(and perhaps before)
also the performance went back down to 2500-3000x in combat after beating the final battle and unlocking the travel option unfortunately