Since the first stage of an intense programme of upgrades appeared in Austria Lando Norris has secured four second places, while his team-mate Oscar Piastri earned his first podium with third place in Japan last weekend.
While the surge in form has been eye-catching Vasseur believes that McLaren underperformed in races earlier in the season while already showing flashes of good pace over one lap, notably in Spain, where Norris qualified third.
