Sorry for not responding right away, been busy. Uploaded 0.341a with new network code. Also an experimental version with a modification to network code that could provide better throughput. Please try them both and let me know which one is better.
More network code changes probably coming in the future as well.
Also, it doesn't lag outside of games because there are no images changes, like when you're in windows, the image on screen stays exactly the same for a long time, which will mean it can compress super small. When in game, and the images are moving, it will have to accommodate for the moving images, so it can generate lag if you don't have the bandwidth to sustain it