The performance in a 197 is not as fast top end as a cup, but is a tad faster than the standard 172 and a tad slower than the 172 cup 0-60.
There is some truth that there are performance differences in 197s, there are 2 different maps from the factory, very early ones had the decent map, then late 2006 - early 2008 they were slightly restricted which caused a slight dip in torque. Then from March 2008 onwards they were shipped with the decent maps again.
So a 2008 with cup packs will probably have the decent map, and an F1 may or may not.
You can have the maps loaded under warranty, as the slightly restricted versions caused cold-start issues.
I agree with lei69gh, get stuck into a 197, its a completely different owner experience to the 182 and 172.