Performance on a straight line, like a 1/4 mile, versus an oval track, or city-rally...or hell, even dirt, some mopeds will clobber others.
Now with a hefty budget...lets just say I could prolly get a Tomos pushin about 4 Horsepower...remember yer talkin to one of the pair who's hand building a variant Tomos engine, too.
But you'd be hard pressed to find to peds of equal settings and whatnot, sheesh, even the tires begin different can change things...and rider experience factors in majorly.
All that bein said ? it's not outrunnin me one would hafta worry about....unless you actually meant you were gonna have rules or somethin <smirk>.
Tomos and Puch are both sweet, I've owned either one in my time, and prefer Tomos simply cause I know the Tomos transmission system well enough to fix it, better than Puch.
That and parts availability.
-R