aingramncl

i get this a lot and after monitoring my flight recently and not going to sleep, it seems the aircraft looses speed and goes below aircrafts minimum stall speed, see atached image of my speed at mach .57 and only able to climb to FL330 when my optimum is FL400, is there something i have done wrong here or is this a general WASM failure?

I do not know if I am doing something wrong here but always happens to me in the 1000 series A350 no issue in the 900 so im thinking might be something i have done wrong here, but everytime I fly the A350-1000 the aircraft seems to just never want to maintain a safe speed at cruise and sometimes disenages the autopilot due to inidicated airspeed being almost at stall speed, max speed i get is mach .57 at FL330, any help what I am doing wrong is much appreciated. apologies if this has already been answered. see attached screenshot of my altitude at FL330 and mach .57 and the optimum currently FL400

OMG ive been wanting a decent LAX for MSFS, initeam please release this tomorrow! 🤩🤩