The MiG is actually quite forgiving of an aircraft from my experience. You get quite a feeling of a very good instantaneous turn rate, but as you continue, it eases up and signals the time to start loosening up on the stick for most maneuvers. So with that said, compared to the more modern fighters, it's a flying brick rocket with so little surface area on the delta wings. Even so, with the lack of response at lower speeds, you get the instinct of pulling hard, and the 21's control surfaces fight back. The 21 never seems to succumb to high G Forces that are so prevalent on the 4th Gen FC3 aircraft. So all in all, it's quite a controllable aircraft, but it certainly isn't going to turn with the best. Also, use the stupid fast acceleration and deceleration to your advantage in all scenarios, the only thing that even rivals it is the MiG-23.
Anyways, my basic set of advice is to loosen up with the stick, remember that you'll get minimal return in pushing hard on the control surfaces, and that the throttle is your savior when it comes to getting more control. When coming in to land, I come in at a ridiculously low AGL, perhaps 75m, although there are probably much more efficient ways to conserve speed at higher altitudes, but nonetheless keep it around 370 once you lower your throttle to the landing preset, flaps extended at the short range radar array, and around 5 degrees pitch up as you approach what I perceive to be around 10m, if you flare too high or early, either your gear won't retract later from the aforementioned ground effect, or you'll get the famous bouncing effect that even larger aircraft tend to experience, and if feels off, just add that little burst of throttle and hopefully all goes well.
(Keep in mind I have minimal sim experience with the larger commercial aircraft you fly, and while I certainly don't have any with real life aircraft, hence my likely outlandish methods of getting the 21 on the ground, anything to help, I guess)
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