I've tried the search tool without luck but this may already have been addressed.
The consensus, I think, on stutter appears to be NPC spawns and particularly those that have been changed by a mod (no matter how small). Given the number of mods that improve the game immensely that involve changing NPCs, can anyone confirm that they use mods like better settlers, unique settlers, better locational damage, weaponsmith, super mutants redux and so on without getting stutter?