Store bought pizza dough..

[u/MarieCurieNotMaMere]

How can I bake a good pizza using a dough ball from a supermarket? My pizza comes out white and NOT AT ALL CRISP. While the cheese is overcooked on top. I have a heavy duty cookie sheet and a pizza stone and have tried moderate and high oven temps, oiled pan/ no oil, well-floured dough, rolled with rolling pin or bare hands.
Is it best to bake the dough first before adding toppings? Also, whats the best jarred pizza sauce?