With a relatively light takeoff gross weight of 284,000 lbs, I'm seeing a super-anemic climb rate of ~700-800 fpm climbing through the high 20s.
Climb performance is largely a function of thrust-to-weight ratio. A full-loaded 747-400 at 875,000 lbs with four of the same CF6 engines has a thrust-to-weight ratio of 0.26, and can climb at 2000-3000 fpm in the 20s. Compare that to a 280,000 lb A300-600F with a whopping thrust to weight ratio of 0.43--the A300 should be able to hold well over 3000 fpm in this altitude range. Something is way off in the FD thrust curves.
Also, the A/T stayed stuck in TOGA power no matter what was set in the TRP--it showed climb mode, and a target of 101.4% N1, and the throttles remained firewalled at 104.2%.