Inibuilds A300v2 very hard to Climb to Cruise altitude

[AndrewC3800]

I have upgraded to V2 and so far it it extremely hard to climb the plane on takeoff then afterward I cannot go past FL340 without stalling. I could only stay at FL330 and the A300 could not even reach its Cruise speed the entire flight. The A300s max altitude is FL400 but this one chose FL340 as its max as i lose speed at even V/s of 100. Is there a way to fix this?

[AndrewC3800]

And my weight is 143.8kg

[fob420]

What autopilot modes are you in? What thrus mode did you select?

 

[AndrewC3800]

I choose TOGA for takeoff

[iniBuilds]

Ok, and did this swap back to AUTO?

Please show a video of the issue