Magpie VS video2x

You can try to launch the game with a lower resolution and upscale it using FSR with Magpie or Lossless Scaling (my favourite). You'll have to add a custom resolution and then upscale.

If anyone does this, you will find that the base resolution is really small, and putting it in fullscreen makes the Deepl translation go away, to solve this you can use a free upscaler called Magpie, it even upscales the subtitle box along with the game client!

You can use Magpie, which is meant for upscaling VNs but also has the side effect of making VNs basically borderless fullscreen.

This version of Magpie, specifically. The Anime4K scaling usually works like a charm, but with Dohna Dohna it doesn't seem to do anything, nor do the other options seem to have any noticeable effect.

Another thing I've been meaning to try, but haven't yet, is hooking up VLC to https://github.com/k4yt3x/video2x/wiki or similar, since, yeah, while DVD quality is pretty decent, for certain genres sometimes I do want a bit more luscious detail.

Upscaling? Yup - but it's going to be local (and slow) https://github.com/k4yt3x/video2x

I've tried https://github.com/k4yt3x/video2x but mostly for anime. The recorded video I tried ended up looking real horror-show, but it was also an ancient 240p video I had hanging around.

You can use video2x to do this (I'd recommend this, as it's free and open source. Works best on animated content imo)