Not sure what is causing this but every so often (I feel like it happens when reloading a save) the rate of fire on generally everything ramps up which causes issues with the guns' performance, for instance animations. Vanilla revolvers won't thumb back the hammer, hunting rifles won't cycle the bolt. And for modded weapons like the hunting shotgun (no pumping). I've tried saving/reloading, changing attachments, and using ECO to lower the ROF (sort of fixes it but not fully, it helps the automatic weapons but the semi/single action weapons are clunkier with that method). The rate of fire stat itself shows that it's normal but doesn't match up with how fast these things are spewing out rounds. I haven't tried doing a REsaver clean yet. I'm on the NG simple downgraded version. I don't think I have any mods that alter weapon stats other than ECO