Horrible scrolling performance with just some text

I’m starting a project with Ionic 4 using React.
My problem is that a div with a couple of paragraphs of text to scroll with overflow-y: auto scrolls at 10fps in my phone, is not a powerful phone but If I open chrome and browse a website with a lot more text and images, the scrolling is smooth, so the device and the browser is ok.
I added a console.log in all the render funcions and I’m rendering just once. Is this framework that slow? or it’s me?

I’m running the app using Ionic DevApp, so it’s a dev build, are dev build that slow??


I tried running on device with a production build and I get like 18fps. Not much better.