There really isn’t any evidence one way or the other about Gripen flight performance. I think it is a perfectly reasonable question to ask why it ends up performing the way that it does in the game when there doesn’t seem to be a lot of basis for it.
Probably the best kinetic idea for the Gripen is an F-16 with slightly worse steady state agility and better instantaneous.
It doesn’t have as powerful an engine, but then again it has better aerodynamics.
It has dogshit IRCCM because nato crybabies want it to be like that. While 9M gets better IRCCM than it had IRL. Good luck hitting a grippen on auto flare for 10 minutes. Good luck dogfighting anything in SU-27, it sucks at what it was designed for in the game.
They have used i believe Litening III on their mig29k if i remember correctly it might not be their mig29ks but i remember seeing them use western pod on russian planes