I do not understand why you assume that is the case?
As you might know, brake pads are most controversial topic on the track. Anyone with a day of track time knows that it is not about oil or tires; it is always about pads.
However, in my 25+ years of experience on track for fun, or racing for serious (long time ago, uphill climb) it is not about highly modified vehicles, it is always about vehicle that needs least amount of work to be modified. That is why two most common vehicles on tracks are Miata and BMW 3 series. You can go with the Porsche 911 (which can do multiple laps on regular brakes, as well as the M3). However, modifying the Miata 3 series is easy. Actually super easy, because they have really good platform, suspension, and in case of 3 series comes with pretty much ready to go bolt points etc. from M3.
So going to Tesla. You stated it has 4k lbs? So? On that front, the rotors are 320mm! In a car like that, Tesla "engineers" decided to put a smaller rotor than BMW 330i from 2006!!! Think about that! When you do not have a surface to work on, then your options suck when it comes to aftermarket stuff, regardless of whether that is Pagid RSL, Carbotech, etc. Also, for example, the cheapest BMW in 2009 was 128i. 128i comes with brake cooling that is common on Porsche 911, or any other BMW. You cannot find that on GTI, and the Audi S4 B8 does not have it. On 128, it is super easy, for example, to bolt on M3 control arms and brake calipers because they share the same knuckle.
So, when you mention Tesla's performance, you are talking about perception of performance! The less modification necessary for the track, the more of a performance vehicle it is.
By the way, I stayed once on track 1 1/2hrs running EBC Yellowstuff up front and back. Mild trackpad, nothing special, on front ATE rotors and back Pagid rotors, all plain. I have seen numerous owners of Porsche 911 who think they can track vehicles as well as anyone else just because. they have 911. No modifications. And yet, regardless of their ignorance, which is usually very taxing on brakes, they managed to do numerous laps. That is a performance vehicle. Back road spirited driving? I did that with a Toyota Sienna.