But I do have issue with low speeds and camera shake. It just might be more magnified because of the smaller frame size?
Since I started darkroom printing I stopped worrying about the grain and sharpness. At the sizes I'm able to print, none of them is an issue

But now I got curious and just scanned one frame where I'm sure I was lower than 1/30. No problem with the shake as far as I'm concerned. Of course, we all have different standards about this. But for what the shutter shake feels like on Pen F (you can literally feel the shock in your hand) and what ends on film, I'm always pleasantly surprised.

(you can click on image for original unsharpened full resolution scan, film is Adox Color Mission 200 so it's grainy)