Spiral made her a cyborg so she had access to all sorts of extradimensional technology & magic that allows Deathstrike to function in ways that terestrial science says is impossible.
It's always bothered me that Deathstrike's fingers are usually just presented as flesh colored & extra pointy. If her adamantium talons are always covered by skin, she can't cut anything. We know she lacks adamantium skin because takes plenty of battle damage. Her talons ought to be a nice shiny silver like adamantium is. That's how I repaint her action figures & lead figurines. It's one of the few things I prefer from X-Men 2 to the comics, although I think Kubert & Adams set a precedent for it.