The top guys will adapt quickly. Antonelli is pretty close to Russell immediately, and Russell was pretty close to Lewis.
IMHO Sainz and Tsunoda are not top drivers but Sainz has demonstrated that he can work on a difficult car, avoid panic, and learn how to get more out of it. Tsunoda will have to do the same this year.
I have no doubt that the absence of testing doesn't help, but that's been the case for a really long time now. The only drivers who experienced the old days are pushing 40 now.
Both Antonelli and Russell had extensive testing programs before stepping on to the grid as Mercedes drivers. It isn't just about being a "top guy". Despite the sprint win, Hamilton is also having trouble getting 100% out of the Ferrari thus far.
Unlike rookies, veteran drivers have to unlearn and relearn any habits they picked up from previous teams. For example, Sainz said the Ferrari had a specific way to gain time on corner entry that the Williams does not respond well to. Now he has to sacrifice corner entry for exit speed, which isn't something drivers just "do". You have to integrate that into your natural driving style.
He said it will take at 5 races to figure out the car and maybe as much as 10. I'm giving guys like Hamilton, Hulk, Tusnoda, Ocon, etc the same grace.
Going further on this topic, I think that guys like Leclerc and Verstappen, who have spent most of their careers with one team and driven cars with similar characteristics year after year, would have some initial trouble adapting to new cars with completely different philosophies as well. Eventually they'd figure it out, they're great drivers. But if I put them in a car with a weak front end like say a 2018-2021 McLaren, it would definitely challenge their driving styles.
Edited by KPower, Yesterday, 14:15.