Why does high blood gas partition coefficient of a inhalational anaesthetic drug mean slower induction of anesthesia?

High blood gas partition coefficient of a drug corresponds to higher solubility of the drug in blood leading to high concentration of the drug in blood with respect to gas (air in alveoli). If the drug is present at high concentration in the blood, wouldn't it correspond to faster delivery to target tissues-leading to faster anaesthetic effects or induction? What is meant by "more time is required to attain partial pressure in blood for induction" if the drug has high blood gas coefficient"?


