A compressed version wouldn't fix something like that, something is up with your system or something went wrong.
We haven't heard of it running that poorly on any system, so unsure what would cause that.
Compressed versions may be available in the future once we've sorted out other logistical issues in the way of that.
The game does not run in 4K—the canvas is 1080x720—less than 1080p.
As a side note, maybe that'd change to 1920x1080 in the future if reasonably viable, once other more pressing things have been handled.