There's already a The Blood of Dawnwalker mod which triples the length of its main quest timer, ensuring saving your family from vampires isn't stressful

What happened

Why the rush, The Blood of Dawnwalker ? Your protagonist Coen's family have only been kidnapped by a vampiric dictator who's slowly draining them of blood. Let the kid take his sweet time in finding a way to deliver them from the castle dungeon. After all, he's got a tonne of bandits he could be killing and other fun little adventures he could be stumbling across as he explores Vale Sangora. The good news for folks…

Summary assembled by rule from the sources below

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