Animation drawing is not sharp

[palancana]

Hi,

I'm checking the examples provided in the repo, building the app on a real device (iPhone XS) but the the rendered animation quality doesn't look good, it's not sharp. Instead, it looks like a raster image. This happens on a custom simple drawing I did (just a circle with a border):

And also in the example .flr file provided:

Is there something I have to configure to have a better or higher quality/resolution on the displayed animation?

Thank you!