Hospital Grade vs At Home Pump

Xiomi • 🤰🏻30, married💎, mom of 2 👧🏻👦🏻 soon 3 👶🏻! Self employed 💡, God loving ✝️, Costa Rican 🇨🇷, Clean living 🚭
I get a lot more milk when I use the Medea hospital grade pump (baby is in NICU) usually 2-2.5oz per breast but when I'm home using my Medela pump in style I only get about 2.5 total from both breasts... any tips?? What can I do to get more at home?