I flew the Mirage for the first time in a while today, so I can't really tell if this is something new or not.
Anyway. I taxied out with the standard CAP load out and noticed the high thrust required to get the plane moving, which might be correct. But once rolling aircraft tend to keep going by momentum and idle thrust, this is not the case with this Mirage. You need to keep a relatively high amount of thrust just to keep it rolling and I believe this is wrong.
I base this opinion on IRL experience from light and medium weight civil aircraft, other simulators and modules and the way a car decelerates slowly in neutral gear.