how many V8 supercars do you see with fully sick stretched rear tyres onto 11ty billion inch width rear rims?
how many rally cars do you see with stretched tyres?
how many F1 cars do you see with stretched tyres?
If it was any performance benefit these boys would be all over it before you'd even heard of it.
if we're talking about performance, then the right size spec tyre (near vertical sidewalls, if a little leant over toward to tread) will perform the best.
you don't see lambos, fezzas, porkers coming from factory with a 225 on a 10 inch rim, for a reason.