SU-39 and A-10C should not launch R-73 and AIM-9M

Yes. About 95% of an F-14A in flight performance due added weight.

what ?

Although having a new missile may elevate the aircraft’s rank, the PL5E2 or PL8B means that the JH-7A has the ability to defeat opponents without interference, and even in the face of heavy opponents, there is a possibility of victory in battle.