Except perhaps for the very bottom of Porsche's product lines, the Tesla isn't even close.
Tesla is for geeks and treehuggers - but anyone into cars takes a quick look and then laughs - it's definitely not a gearheads ride in any way shape or form.
So we're in agreement then. The Tesla price point is pretty similar to stock bottom-of-price 911s, and their 0-60 is comparable as well.
I can't speak on handling, but from an outside point of view---they're both sports cars targeting the same market. If Porsche is better than Tesla, that doesn't change their chosen demographic.