If you want performance, buy a sports car not a Tesla. Straight line acceleration has almost nothing to do with lap time compared to the suspension and brakes. You can buy a formula car with downforce for about £15k, admittedly more if you want to take it to tracks and run it healthily.

Also, if you look for "performance" in your road car it just sounds like a recipe for wrapping it around a tree (Or ruining your back: I'm a huge motorsports fanatic, and I'd still probably take a comfortable car with reasonable performance over a "fast" one without fancy suspension to make it comfortable)