Repostan my Data Link-free build for the Mirage and F-16C.
>The Musketeer and the Dumbass
>Blisk 2
>VCE 2
>Flaps 3
>SupMan 2
>Airbrake 2
>MSL Homing 2
>MSL Damage 2
>GUN Damage 2
In terms of pure performance, the Mirage will likely surprise you: you'll find yourself keeping up with most of the aircraft you'll meet. What really hinders it is its sole A2A SPW, the 4AAM.
So, if you have a decent fighter, but a shit SPW and no Data-Link, what do you use? Guns.
The F-16 is in a similar boat, except it doesn't even have good performance. I'd only recommend using it in rooms full of actual bottom of the barrel nuggets. Fly it with the default emblem for maximum effect.