Eye Round Slow Crock Pot Cooking Time In A Crock Pot (slow Cooker)?

Cooking time in a crock pot (slow cooker)? - eye round slow crock pot

I am an eye roast boneless eye round in a pot with onions and potatoes. The weight is slightly less than 1.5 pounds. What is the right time and heat for cooking? I want to be sure, but this must be as fast as possible, otherwise he would eat by 10 clock tonight! Suggestions?

Thank you!