The Taycan has been reviewed to have better performance already. It has a better drivetrain with a higher voltage which means more power, faster charging, smaller more efficient motors, cooler operating temps, along with more advanced suspension, traction control and braking system.
If anything, Tesla would win on non-performance factors like autopilot. The whole point is that Porsche made an electric car for their performance-focused clients who otherwise didn't want a Tesla.
> A Nissan Leaf can also hunt down the Model S on track:
A modified, race prepped, brand new 2019 Leaf beat an old, stock Model S of unspecified mileage. Given how quickly TSLA has been advancing their powertrain and battery tech, leaving those details out is misleading at best.