How big are your canvases? Sometimes if the pixels are too wide or too tall, it could make your art pieces blurry.
I had that problem too in the beginning but I found out that if the canvas (I use procreate) is around 2048 x 2048px I’m usually fine.
that.. makes sense actually 🤔🤔 i didn’t start having this issue until recently since i started using larger canvas sizes… next time i’ll try to use a smaller size