I got through F:NV without the framerate bug, but not through F3. It got pretty bad, it's the reason i stopped playing it.
Anyway, never played an elder scroll game, probably won't give this a go either; Bethesda game bugs are ridiculous.
e=mc^2
Gaming on: PS4 Pro, Switch, SNES Mini, Wii U, PC (i5-7400, GTX 1060)