No she doesn't.. please stop making up shit.
Tsunade broke the susanoo.. nice good feat for her.. that just means Sakura would cause more damage to it.
Sakura can use all her chakra, she also has more chakra than Tsunade the whole (Uzumaki + Senju = tsunade has more chakra) doesn't work anymore.
And so what if she created it?

. Sage of 6 paths discovered chakra secrets.. yet most of the ninja are better than him in using chakra.. Again SO WHAT IF SHE CREATED IT?
Sakura > Tsuande. MANGA FACT. ALL THE TEAM 7 has surpassed the SANIN.