How can I restrict my app to Android 4.1 and below?

A

AC Question

How can I restrict my app for Android 4.1 and bellow?

I recently published an app, and I don't really have much experience on this. It's made with React and Cordova, therefore my knowledge on Java or Android is none.
I am having very bad ratings because the app doesn't work well in old phones. I'd like to restrict people with old phones from downloading it, so they don't have a bad experience and rate it bad. Is that possible at all? I don't see the option in the developer console.

Thank you.