They seem to be rendering the documents at 2x, which is good for retina and 4k displays, but means that it's slower on low-res displays, and the text's anti-ali

They seem to be rendering the documents at 2x, which is good for retina and 4k displays, but means that it's slower on low-res displays, and the text's anti-aliasing is at the mercy of the image scaling algorithm used. Instead, they should render the documents at the actual resolution it's being displayed with.