The Porsche Taycan and related Audi e-tron GT are considered basically the best-handling production cars built so far, and these come in at around 2.4 tons or something. They are of course quite low for EVs, barely taller than a 911 iirc.
A gas 911 GT3 RS with less than half the horsepower laps it in 6:49.3.
The 911 by most measures is the slower car (10.9s 1/4 mile vs 9.2s for the Taycan, 184mph top speed vs 190 etc). The difference is the 911s superior handling and braking and that mostly comes down to the difference in weight.
One simply can't make a tonne disappear, in handling terms.