it's not designed to be good in dogfight, therefor it's not good in dogfight, easy
But it was designed to be as maneuverable as the F-16, which it is apparently not. Anyway, when we generically say "dogfighting," what we really mean is ACM. Those who contend that ACM is antiquated or somehow irrelevant in modern aerial combat seem to be apologists for the program rather students of the craft.