The gen 1 and 2 starters all have balanced stat spreads, with none of their stats being below the high 70s. This changes in gen 3, with Blaziken's defenses and sceptile's HP being 70 flat and swampert having 60 speed. If we're hypothesizing about modern spreads for them, they would likely be more minmaxed as a whole, though I wouldn't be surprised if it was taken out of Meganium's and Blastoise's Attack before their Speed.I guess snipers are very steady combatants and rarely make quick movements?That said, it's obvious GF were overly cautious about making the starters too slow in early gens. If Venusaur, Meganium, Blastoise, etc. were made today, no way they would get anyway near 80 base speed. Thus Venusaur's speed is probably an anomaly.