
Don't know much about it but on the face of it looks more like the F-CK-1, or the F-5 because it seems to be smaller / lighter with less hard-points.
Most sources give a top level speed of Mach 1.6 / 700 Kts which would presumably only happen above 35,000ft without any pylons (at a guess). Sea level speed would be somewhere below M1.2 typically.
Was powered by a variant of the MiG-29s RD-33 but they might be moving to a Chinese engine for newer blocks.
The US have prevented sales of F-16s to Pakistan in the past several times so it could be their way of getting around that - until they annoy China somehow of course.
For countries denied F-16V Block 70/72 for whatever reason it could be a budget alternative maybe.
http://www.jf-17.com/specifications/