Scaling Cinder Strike

I’m looking at building around Falcon Fists and trying to scale that damage up as much as possible. My issue is that Cinder Strike seems to split it’s damage 50/50 between Phys and Fire… are there good affixes I should be looking at to increase that damage, or is the best idea a small dip into phys and fire and then scale damage other ways with Crits and Attack Speed? Or am I overlooking something that will scale both halves well?