It speeds up and slows down in regular intervals. It especially slows down during combat. It used to run really fast.

Alienware M14xR2
i7-3630QM @ 2.40GHz
8GB RAM
NVIDIA GeForce GT 650M

I used to run a lot of mods with tweaked INI files but now I'm using the default INIs and cut my mods down to exclude most graphics mods.

Here is my current load order:

Skyrim.esm
Dawnguard.esm
HearthFires.esm
Dragonborn.esm
Skyrim Project Optimization.esm
Update.esm
HighResTexturePack01.esp
HighResTexturePack02.esp
HighResTexturePack03.esp
Brawl Bugs CE.esp
breezehomelightfix.esp
unofficial skyrim patch.esp
unofficial dawnguard patch.esp
unofficial hearthfire patch.esp
unofficial dragonborn patch.esp
unofficial high resolution patch.esp
chesko_lorebasedloadingscreens.esp
SkyUI.esp
Cloaks.esp
1nivWICCloaks.esp
1nivWICSkyCloaksPatch.esp
run for your lives.esp
when vampires attack.esp
Headtracking.esp
dd - realistic ragdoll force - realistic.esp
private_nokillblur_test.esp
dd-no spinning death animation.esp
UFO - Ultimate Follower Overhaul.esp
UFO - Dawnguard AddOn.esp
UFO - Heartfire AddOn.esp
reduced distance npc greetings.esp
Bashed Patch, 0.esp

Have you tried it without the the highres textures ?

Defragged your hard drive ?

Run BOSS to check mod order ?

Potentially mod related issues go in the mod forums, I'm moving this thread for you.

No but I had no issues there in the past. It used to be able to run great with a few graphics mods on top of the High Res Pack. Besides every time I disabled another mod to see if the problem was there it hadn't changed the lag much. Now I have all the graphics mods disabled and it's still slow.


Defragging now.


I always run BOSS when I add or disable a mod.

I ran into this problem. I have no idea what set it off, but I found turning down/off AA and anisotropic filtering made a big difference in performance. Another setting that seemed to help was turning down shadows.