Hey goodnotes,
I'm using your program on windows and there are some performance issues especially when you import larger pdfs.
Especially if you write something on it the performance is suboptimal.
I also noticed that the written text seems kind of blurry when you zoom out that could also be improved.
Also some more customizability in the home screen, like sorting your folders in the order you want, would be great.
If you do a few fixes making your program more usable for all platforms you will probably dominate the market in a few years no matter if it’s an apple, windows or other device.

I hope to see some improvements soon :)