May not outperform but match J10B.
1. J 10 combat radius is 550km without aerial refueling whereas Tejas combat radius is 850 km without aerial refueling.
2. J 10B will able to carry 6 ton of payload and if it carries drop tank to increase it's range it's weapon load will decrease to 4.5 ton. On the other hand Tejas mk2's payload is 5 ton clean.(Note:- J 10 will not able to take off with full 6 ton payload from high altitude.)
3. Both will have AESA radar.
4. Cruising speed of both the plane is same.
5. Thrust to weight ratio of Tejas will be better than J-10B.
6. RCS of Tejas mk2 will be smaller than J-10B.
j10b is MCA , Tejas is LCA
J10A & j10B is in has already been inducted in PLAA since 2008, according to estimates 300+ numbers are flying
and finally J10b has & LCA Tejas will have ---------
kindly be practical.