Your own list shows 4 victories for Ottomans and 4 victories for Safavids and 2 stalemates. Where are you getting the 80% figure from? Besides, your fallacies Ottomans were dominant power in the region and in Europe during 16th century. Safavids were militarily weak compared to Ottomans and they were cowards. While Ottomans focused on conquering Europe, the jealous Safavids would attack Ottoman empire in the back hoping to get land back in Iraq.
Although you should know Ottomans won the most important and decisive battles against the Safavids. The most important is the Battle of Chaldiran in 1514 when Sultan Selim I won a decisive victory against the Safavids. That battle enabled the Ottomans to take Iraq and move into the Middle East all the way down to Yemen.
Had Ottoman Empire wanted, they could have crushed the Safavid dynasty and exerted direct rule on Iran, but they didn't want to spill Muslim blood and only focused on conquering more of Europe and controlling the Sunni Middle East.