I am running into an issue with the frame rate dropping off with the most current version. It occurs usually after avionics start or after i get airborne. Sim starts at 30-35 fps and then dumps to around 20 and then slowly down to  10-15 and stays that way for the duration of the flight. I am running x plane clean with the only add on's being the tbm 900, and 124th atc.  Log,,,.txt