Driving style is often blamed for the struggles of a driver, but it's usually done so in vague terms because Formula 1 drivers don't like discussing their approach in great depth.
That's particularly true when it comes to limitations that they either understand but do not want to accept publicly, or have not yet got their heads around. But it's a significant factor that can explain why even the drivers capable of being world champions can be superhuman one day, average the next.
Sebastian Vettel's struggles this year have been well-documented. He's been outpaced by Charles Leclerc over the balance of the season, although there have been some green shoots appearing recently with his race pace at Sochi and, in particular, his qualifying speed at Suzuka.