That’s unfortunate. I’m not familiar with the program so I don’t know the extent of its capabilities.
Another program you might want to consider is Clip Studio Paint. A program that is very cheap for its value (there’s a free, medium and a premium version and all can be accessed through a trial period) it offers a vast amount of features and is stable and reliable (on my pc at least I can’t vouch for tablet or the like)
It is most likened to photoshop, and can even import Pshop brushes (though their brush engines aren’t the same so you still might have to tweak it a bit)
Huion also has some issues with line stability since it’s a cheaper brand, the last time I checked which is about 3 quarters of a year ago. It really depends on your budget and your needs. It might be enough for some, but 2 of my friends who are venturing into professional artist territory were not satisfied with it and returned it.
It is however, affordable, and rapidly developing.
As Tiravi mentioned, higher resolution and size set before the drawing process starts, may help. What are your current dimensions so we can get an idea?
Also, would you like constructive criticism/feedback on your artwork or nah?