Not a solution regarding CTDs and low GPU performance/limited by main thread on higher end CPU's - Enable all CPU cores in Windows!

[MSFSRonS]

Take a look at my write up for an initial flight in the WT CJ4. (how to)
Plan , Take off, Cruise, Land, IFR/ILS, AP, FMC

Step By Step WT CJ4 IFR/ILS Flight From New York City to Newark,NJ includes Flight Plan, Take Off, Cruise, Landing (2 min to create FP & 15 min flight)

FS2020 - Version 1.13.16.0 New Edit: 3/3/2021 10:13 USA EST This applies only to the Working Title Mod to the Cessna Citation CJ4 Jet. Working Title CJ4 0.10.3 Download Link: From JFK Airport in New York to Newark Intl Airport in New Jersey Note: Use your flightstick instead of the keyboard commands if you wish. Note: This is a basic flight. — INITIALIZE FLIGHT PLAN — Main Menu of FS2020: New Flight. Create Flight Plan (from KJFK to KEWR) FROM = Click “Select Departure Airport…