You don't buy a Porsche for 0 to 100 performance as there are better cars on the market for that. You buy a Porsche because you want the fastest track cars that will best any other car on the Nurburgring. The Taycan will be the fastest production electric car on the Ring.
I think there is a very high chance, that it will be, but right now the M3P, is beating even the BMW M3 and Mercedes C63 AMG around tracks, as shown by Top Gear and others. I do however think that people buy them, because they are performance luxury cars, with a great interior, and great features. Thats why I was looking at it anyway. Unfortunately because of the danish tax system, and when the car will be available, the Model 3 Performance, makes much better sense for me..
I'll admit that the Taycan will be very nice looking, but it will also be about twice the price, if going for the same performance.