This aircraft doesn't have stick shaker that simulates stall vibration, like some commercial airplanes have.
In our module vibration effects are simulated visually, not through FFB, that wouldn't be realistic.
Also available now in DCS Web page (Downloads-Texture templates).
https://www.digitalcombatsimulator.com/en/downloads/texture_templates/mirage_f1_template/
I will soon remove the link in my first post.
This is already fixed internally and will be available for you in the next update.
The reason of the bug was an interaction between our code and the wake turbulence in multiplayer.
Chichowalker is totally right, it's internally fixed in both pitch and yaw channels and it will committed with next ED's update. Please note that the behaviour present in current Open Beta is going to change significantly in the next update.
We also have an internal fix for the bug with "extreme speed" at low altitude.