It's easy to roll over, because it's a tiny sub-900 lb. car, and a small kerb suddenly becomes a launch ramp.
Stock, acceleration seems slow, because it has a low-displacement, high-revving engine with mediocre torque. It might not feel fast, but then you realize that you can tackle corners 5 ~ 10 mph faster than you think you can or should.
Modified, the Fireblade becomes a relative monster once settings are optimized, but the car's prowess isn't monstrous acceleration -- it's a scalpel for carving corners.