I notice that G1000 Cessna and the regular Cessna are two different animals in terms of permanence. Did anyone noticed the bad performance with the G1000 displays ?
Yes, made a post there and proposed a fix https://forums.flightsimulator.com/t/solved-garmin-pfd-causing-stutters/205516
You should still expect to have less FPS with the G1000, but a lot less stutters.