China is decades behind USA, Russia and Europe in military equipments.. they can build roads and railway but weapons esp avionics, they still buy engine technology from Russia.
This is the comparison
Chengdu J-7 - Fighter aircraft
Range: 2,200 km
Max speed: Mach 2.0 (2,200 km/h)
Service ceiling: 17,500 m
Weight empty: 5.3 t
Weight max: 9.1 t
Crew: 1
Sukhoi Su-30 - Multirole fighter
Range: 3,000 km
Max speed: Mach 2.0 (2,120 km/h, 1,320 mph)
Service ceiling: 17,300 m
Weight empty: 17.7 t
Weight max:34.5 t
Crew: 2
Look at the difference in bold - Range and weight it can carry - that means it can carry more missiles/bombs many times compared to the J-7....
These 2 jets are incomparable my friend and i have not even included the other technical specs, this is what Uganda has, in case of a war with Uganda, if you have the F-5 or the J-7 you would need to have very good air-defense systems or destroy these planes while they are still in the hangar.