Heya! Sorry you're having trouble - could you let me know what browser and OS you are on? I am pretty rubbish with this side of things but keen to try and fix it for you.
You might be able to try the downloadable version if you're keen!
I'm on google chrome and 64bit os. I also did try the downloaded version after my attempt with the browser version but unfortunately got the same result.
Edit: oh right I had forgot you mentioned its meant to run on 1920x1080. I'm sorry about that I didn't mean to waste some of your time like that my apologies.
