Lags in certain dungeons PLEASE HELP

[Thorak]

Hello,

So I've got a major issue with my game having gigantic FPS drops in certain locations, mostly in some dungeons (but not all), as well as certain exterior areas, for example, Solstheim Island, after meeting Miraak, you go to learn a word of power to cleanse the stones. In the area where you pick up the word, I have massive FPS drops.

I've tried many solutions I've found online, however none completely solved my issue.

I'm not sure if it's a bad mesh, and if so, where I could get a mesh replacer that would be performance focused.

It doesn't seem to be an HDT mod problem, nor a XPMSE problem.

I've tried to disable my lighting, particle, FX and Water mods to no avail.

 

Please see below my list of Mods:

 

Spoiler

Skyrim.esm=1
Update.esm=1
Dawnguard.esm=1
HearthFires.esm=1
Dragonborn.esm=1
Unofficial Skyrim Legendary Edition Patch.esp=1
Skyrim Supplemental Patch.esp=1
Skyrim Exterior Fixes.esp=1
ClimatesOfTamriel.esm=1
hdtHighHeel.esm=1
ApachiiHair.esm=1
WM Flora Fixes.esp=1
Schlongs of Skyrim - Core.esm=1
SexLab.esm=1
paradise_halls.esm=1
ZaZAnimationPack.esm=1
ApachiiHairFemales.esm=1
ApachiiHairMales.esm=1
Apachii_DivineEleganceStore.esm=1
BSAssets.esm=1
BSHeartland.esm=1
BS_DLC_patch.esp=1
Weapons & Armor Fixes_Remade.esp=1
Clothing & Clutter Fixes.esp=1
SkyUI.esp=1
Extended UI.esp=1
Atlas Compass Tweaks.esp=1
EnhancedLightsandFX.esp=1
cleaner_castlevolkihar3.esp=1
RaceMenu.esp=1
RaceMenuPlugin.esp=1
Sovngarde Particle Fix.esp=1
BlendedRoads.esp=1
ClimatesOfTamriel-Interiors-Warm.esp=1
ClimatesOfTamriel-Dawnguard-Patch.esp=1
ClimatesOfTamriel-Dragonborn-Patch.esp=1
CoT - Water Patch.esp=1
TrueStorms.esp=1
TrueStorms-ClimatesOfTamriel.esp=1
Modern Brawl Bug Fix.esp=1
Better Harvesting (for Wisemans Flora Fixes).esp=1
Auto Unequip Ammo.esp=1
Nemesis PCEA.esp=1
XPMSE.esp=1
SOSRaceMenu.esp=1
SOS - VectorPlexus Regular Addon.esp=1
3DNPC.esp=1
Complete Crafting Overhaul_Remade.esp=1
paradise_halls_SLExtension.esp=1
GreatWarSkyrim.esp=1
DawnofSkyrim-AllMajorCities.esp=1
Weapons & Armor_TrueWeaponsLvlLists.esp=1
3DNPC Visual Overhaul.esp=1
FNIS.esp=1
MainMenu.esp=1
KKSDGWeightSliderFix.esp=1
KKSDrBWeightFix.esp=1
DHuntress.esp=1
KKFur.esp=1
FullBootForKKSA.esp=1
FlameAtronachArmor.esp=1
HDT Havok Object.esp=1
Civil War Aftermath.esp=1
RealisticWaterTwo.esp=1
Hothtrooper44_ArmorCompilation.esp=1
Fort(ified) Dawnguard.esp=1
OwnCivilWar.esp=1
JKs LITE - Cities.esp=1
marriagemod - alpha v3.esp=1
12FemaleBrows.esp=1
Sacrosanct - Vampires of Skyrim.esp=1
half-moon vampire lair.esp=1
VL No AoE Drain.esp=1
Better Vampires.esp=1
Add Sacrosanct Spells to BV.esp=1
Immersive Weapons.esp=1
The Brotherhood of Old.esp=1
Inconsequential NPCs.esp=1
Atlas Legendary.esp=1
RealisticWaterTwo - Legendary.esp=1
Schlongs of Skyrim.esp=1
ImprovedCompanionsBoogaloo.esp=1
CitizensComplete.esp=1
PAH_HomeSweetHome.esp=1
_SHC2.esp=1
Inconsequential NPCs Visual Overhaul.esp=1
Tanya.esp=1
Arcanum.esp=1
PAH_AndYouGetASlave.esp=1
EtR_HearthfireDungeonAddon.esp=1
Sephina.esp=1
Slavewaymanor.esm.esp=1
myownriverwoodhome.esp=1
BTG_Amber.esp=1
pahe_lakeview_manor_cell.esp=1
Apachii_DivineEleganceStore_Patch.esp=1
BatTravel.esp=1
Triumvirate - Mage Archetypes.esp=1
shc3.esm.esp=1
SlaveHoidingCells.esp=1
HottIldari.esp=1
Helena.esp=1
RedguardFollowers.esp=1
Skyrim Flora Overhaul.esp=1
Verdant - A Skyrim Grass Plugin.esp=1
DirtcliffsTextureFix.esp=1
Immersive Speechcraft.esp=1
SexLab Romance.esp=1
paradise_halls_farengars_study.esp=1
My Home Is Your Home.esp=1
My Home Is Your Home dialogue patch.esp=1
Vaelishna.esp=1
ShandarStandaloneFollower.esp=1
Fachry Pandora Follower.esp=1
Arien.esp=1
GK-Vampire.esp=1
LupineWerewolfPerkExpansionMirrorPerks.esp=1
LupineWerewolfPerkExpansion.esp=1
Kreia.esp=1
LeatherSandals.esp=1
Beards.esp=1
Alice.esp=1
Amber.esp=1
DayshaFollower.esp=1
Sorbi.esp=1
Freya.esp=1
Mango.esp=1
Sighne.esp=1
Hothtrooper44_Armor_Ecksstra.esp=1
AZ_TiafayeStandalone.esp=1
Crea_Damaris.esp=1
Evelyn.esp=1
Elena.esp=0
Crea_Jade.esp=1
LKSerana.esp=1
Moniko.esp=1
Crea_Rawerra.esp=1
Venice.esp=1
Toccata as Elisif.esp=1
Convenient Horses.esp=1
Convenient Horses - Unique Frost.esp=1
marriagemod - hf.esp=1
Apocalypse - The Spell Package.esp=1
LustmordVampireArmor.esp=1
Eliza.esp=0
Crea_Sonya.esp=1
Crea_Amaya.esp=1
Crea_Asaiy.esp=1
Crea_Diedra.esp=1
Crea_Ilara.esp=1
Crea_Kariam.esp=1
Crea_Kitana.esp=1
Crea_Nesta.esp=1
Crea_Skarlet.esp=1
PAN_DoD - Azura.esp=1
TheEyesOfBeauty.esp=1
DanarielStormbow.esp=1
BSHeartland - Meshes.esp=1
BSHeartland - Textures.esp=1
SMIM-FarmhouseFlickeringFix.esp=1
SMIM-DragonbornTernFix.esp=1
SMIM-DungeonsCliffsIceSkirts.esp=1
IllusionNoPush.esp=1
CK_Mare_Follower.esp=1
Azeneths Angels.esp=1
DovahBlingJewelryReplacer.esp=1
HearthfireMultiKid.esp=1
HearthfireMultiKid_LastName.esp=1
True Thane.esp=1
True Thane - Hearthfire Patch.esp=1
Guard Dialogue Overhaul.esp=1
SkyrimReputation_S2011.esp=1
Bijin Wives.esp=1
Bijin Warmaidens.esp=1
Bijin NPCs.esp=1
[namida1126]Yvonne Assets.esp=1
[namida1126]Yvonne Assets Eye Pack Addon.esp=1
Alina Ver.2 - Replacer of Olfina.esp=1
Dorothea - Replacer of Saadia.esp=1
Hathaway - Replacer of Laila.esp=1
Larissa - Replacer of Alva.esp=1
Marsha - Follower.esp=1
[namida1126]Joanne - Follower.esp=1
Dorothea - Replacer of Bryling.esp=1
[namida1126]Concetta - Follower.esp=1
Anastasia - Replacer of Endarie.esp=1
Bonnie - Replacer of Taarie.esp=1
CK_Yvette_Follower.esp=1
CS_Anaka.esp=1
CS_Mornhilde.esp=1
Morwenna - Replacer of Vittoria.esp=1
Guards_Armor_Replacer.esp=1
Phenderix Skyrim In-Game Editor.esp=1
vMYC_MeetYourCharacters.esp=1
Remove Interior Fog V2 - Full Version.esp=1
TouringCarriages.esp=1
The Bondage House.esp=1
Ordinator - Perks of Skyrim.esp=1
Apocalypse - Ordinator Compatibility Patch.esp=1
AmazingFollowerTweaks.esp=1
Relationship Dialogue Overhaul.esp=1
RDO - AFT v1.66 Patch.esp=1
Alternate Start - Live Another Life.esp=1
Alternate Start -- New Beginnings.esp=1
ELFXEnhancer.esp=1

 

Please let me know if you've got any solution\testing suggestions, any and all help is appreciated. 

Thanks.