Can I ask why your pitch curve is set like that? Using a linear curve is much better. Something like 46 48 50 75 100. That way, when you go into IU when you are ready, there is no drastic change in pitch causing the helicopter to suddenly drop out of the sky.
And lower your DR down to 70. Should help out quite a bit.
And I would set your 65 on the throttle curve to 85 to keep a constant head speed. If this were me, I would have all fo them but low stick at 85 but you would need a better ESC with slow start.