An emergency stop isn’t required to notice the difference, although to answer this particular question with any science would be.
Im sure the VZ2 brakes are just fine, they just don’t slow you or stop you as quickly (stating the obvious), so you have to use them in a more progressive way, ie brake earlier for longer, an adjustment that would never even be noticed if you had no comparison.
IMO an upgrade of the pads would probably make a massive difference. All really depends on how you drive and how much confidence you want from the way the car slows or stops.
If you are driving normally, not pushing, and you are not fully depressing the brake pedal, it is just a matter of pressure. You don't need to brake earlier for longer - you probably need to apply more pressure. You are just not at the limit of the brakes.
If you are talking about situation where you are braking fully (on track, emergencies, ...) then I'd agree but I fail to see how in normal road use one can say Brembos are much better. They may be more "grabby" or the brake curve is more pronounced (like the car is more jumpy in
Cupra compared to Comfort, even though the engine and power is the same).
It's even possible that even the normal brakes are powerful enough. If you get ABS activating you are already at the limit of traction and more powerful brakes don't
help. I'm pretty sure any
Formentor will get ABS activated when emergency braking.
I agree with
@ElBrillante, the difference is probably the most visible on track where you need maximum brake performance and cooling. Normal brakes will fade sooner. Similar could happen if you are going down a big hill and use your brakes for a long time.