YBNmadman

hello so I don't know if this is just me or if anyone else is having this same issue but whenever I fly the -1000 variant and turn on the autopilot without fail all the spoilers on the left wing go up, the left aileron goes down, and the right aileron goes up to compensate for the spoilers going up, but it still has a roll to the right and has some rudder trim to compensate for all that, but because of that it is having a significant performance decrease like yesterday I tried doing a flight from LHR to JFK with 75% fuel and it crashed just after crossing into gander because of fuel starvation from needing to have the engines at max thrust most of the time to keep a good airspeed and maintain FL340 and earlier today I tried a flight from HND to JFK and it did the same thing but it couldn't even keep a good airspeed a FL330 and it got below 210KTs and for both of these flights I was at or close to MTOW but still it should be able to maintain FL330 at 223000kg MZFW but it just can't