Is it normal that after switching from the original 19-inch wheels to the 21-inch ones that came with my 2024 Panamera, the ride feels less smooth and acceleration seems slower?

I’ll share my personal test drive impressions of various SUVs in the same price range. Can anyone explain the difference in chassis feel between the GV70 Flagship and Luxury models? If there's someone who has driven both, please provide detailed insights! I've also tried SUVs of the same class like BBA, Volvo, and Jaguar. Personally, I think the new GLC has the best overall chassis quality, with Genesis coming in second. Genesis has the best sound insulation! The throttle response is the worst on the GLC! The X3, Q5, Genesis, Volvo, and Jaguar feel quite similar. Subjectively, the GV70 ranks in the top two for overall comfort and drivability. PS: The Q5 feels more filtered and softer. The X3 is a bit too ground-hugging and follows the road surface too much, which I don't like. Volvo is in the middle, but it has the worst sound insulation in its class! The GLC's chassis quality is great with a solid, integrated feel, but the throttle response is really lacking! The Jaguar F-Pace has a slightly firmer chassis and a more sporty driving feel, but its downside is average noise control with some resonance, and it has the smallest rear space. Genesis offers the best overall driving experience. Even with 21-inch wheels, the suspension is really excellent, and the power delivery is smooth and responsive. The space is similar to the X3.

Hi everyone, I want to ask about the 2024 Cayenne. When I bought the car, there were no 21-inch wheels available, so I got the original 20-inch ones. Now I'm planning to change them. Should I go for the 20-inch bird's nest wheels or directly switch to 21-inch tires and wheels? I'm not very familiar with this. I've heard that 21-inch wheels might affect comfort and increase noise. A friend who repairs cars also says I don't need 21-inch wheels, but I'm worried I might regret sticking with 20-inch. Any advice?

Is it normal that after switching from the original 19-inch wheels to the 21-inch ones that came with my 2024 Panamera, the ride feels less smooth and acceleration seems slower?