I’ve had issues in other games when my rudder peddles and G13 game pad are connected. Mouse would run all over the place. You might want to check if one of those is causing interference.
Not a expert at all, but in real life they wouldn’t send a single plane to do a CAP patrol. You have flights covering each and AWACS giving SA to whole flight group.
I had same problem. I figured it out. Hold the starter til it gets to 40% then let it go and let the engine get to around 70% before adding any throttle. Then roll it on smoothly.