Ah, I see, my apologies. I was asking more in general than a particular pad.
So if I went for something like EBC Red stuff they would have similar initial bite when cold and I would have reduced brake dust? So what's the negatives then as you rarely get a free lunch. Why do they market them as fast road as to me that sounds like it's not what I want, is it just marketing for people who like that sort of thing?
Also do you have to do front and back at the same time as it's only the fronts that get dirty.
Brake pads must offer the same cold "bite" as the OEM pad in order to be road legal.
For road cars, brake pads must be R90 marked which requires that the pad have the same friction characteristics as OEM under both cold and warm operating temperatures. This also means that pads with more "bite" than OEM fail R90 testing, as well as ones with less. With a few exceptions, it is illegal to use a modern car with non-R90 pads on the road.
The difference with "fast road" pads is that they are formulated to retain their performance at higher temperatures than typical OEM pads, while still meeting the OEM specifications at cold and normal temperatures where R90 testing is performed.
Similarly, you can get light track use pads, which work well at even higher temperatures, but still meet R90 specifications when cold or warm.
If you need even higher temperature operation for harder track use, then there are dedicated track pads, but because these formulations tend to sacrifice cold performance for better high temperature performance, they usually fail R90 testing and cannot be used on the road.
There are trade-offs with pad design: cost, noise, life, etc. My own experience with EBC red stuff is that they are expensive than OEM, and don't last as long - but produce less dust and put much less wear on the discs, while retaining OEM noise and vibration levels. Yellow stuff are even more expensive, produce tons of dust, eat the discs and are noisier.