I wrote a huge reply but I can't see it so maybe it got deleted somehow, anyways fast recap in case it's just my side doing weird things, the plane needs slightly better roll rate(increase by 0.1 oxmax of every speed step), less drag when pulling aoa, more power to do climbs, should be able to pass 300kts in straight flight at sea level at least, can go up to 40 aoa while not departing flight as much as it does currently when pulling a bit hard on the stick. All my points are in the video. Good luck and nice work!