Massive FPS Drop when leaving Interiors

[darkedgeblade]

So I'm having a really annoying problem with my Modded Skyrim SE.
Normally the game runs at a solid 59~ FPS both indoors and outdoors, but when I leave an interior (Dungeons Only, Houses are ok) My FPS Drops to about 10 FPS.
This will only go away if I save, exit and reload. Whats even weirder is that If I move my character, the FPS climbs to about 30-40, but standing still, FPS sinks back to 10FPS.
Disabling Rudy ENB makes no difference on FPS either. Starting a new character seems to have cured it, but after reaching lvl 5, the glitch returned.
I've read that some people with a similar issues solved it by decreasing shadow quality, but for me that did not solve this issue.
I went through my modlist with SSEedit to clean them up. Sorted through loot and resolved all loot suggestions, and Creator a Mator Smash Patch for my modlist.
At this point Im pretty stumped. Hoping that someone could share any insight on this strange issue.

My Specs:
Processor: Intel® Core i5-6600 CPU @ 3.30GHz, 3301 Mhz, 4 Cores
GPU: RTX2080Ti
Memory: 40Gb
931GB SSD Drive

Modlist:
Skyrim.esm
Update.esm
Dawnguard.esm
HearthFires.esm
Dragonborn.esm
RSkyrimChildren.esm
Unofficial Skyrim Special Edition Patch.esp
MajesticMountains_Landscape.esm
FISS.esp
WM_WidgetMod.esl
SMIM-SE-Merged-All.esp
ELFX - Exteriors.esp
EnhancedLightsandFX.esp
SkyrimIsWindy.esp
Veydosebrom.esp
Immersive Sounds - Compendium.esp
Weapons Armor Clothing & Clutter Fixes.esp
Obsidian Weathers.esp
MajesticMountains.esp
dD - Enhanced Blood Main.esp
dD-Medium Script Range.esp
SkyUI_SE.esp
Cloaks.esp
Cloaks - Dawnguard.esp
Cloaks - USSEP Patch.esp
Mortal Enemies.esp
Supreme and Volumetric Fog for Obsidian Weathers and Seasons.esp
S3DRocks.esp
DustEffectsSSE.esp
BlendedRoads.esp
Soul Gems Glow When Full.esp
Fusax2.esp
QuickLight.esp
Qw_ISC_USSEP Patch.esp
Qw_WACCF_ISC Patch.esp
aMidianborn_Skyforge_Weapons.esp
RaceMenu.esp
RaceMenuPlugin.esp
FNIS.esp
XPMSE.esp
SkyHUD.esp
AMatterOfTime.esp
WM_WidgetMod.esp
Immersive Dragon Sounds.esp
Rebirth Monster.esp
High Level Enemies.esp
High Level Enemies - Dawnguard.esp
High Level Enemies - Dragonborn.esp
UltimateCombat.esp
NoBSAIProjectileDodge.esp
DiverseDragonsCollectionSE.esp
RSChildren.esp
KSHairdosSMP.esp
KSWigsSMP.esp
KS Hairdo's.esp
Improved Eyes Skyrim - Vamp.esp
Improved Eyes Skyrim.esp
CBBE.esp
Beards.esp
The Ordinary Women.esp
Bijin NPCs.esp
Guards_Armor_Replacer.esp
Relationship Dialogue Overhaul.esp
Immersive Music Replacer.esp
ScopedBows.esp
Males of Skyrim.esp
Bijin Warmaidens.esp
Bijin Wives.esp
Seductress Serana.esp
ScopedBows_ArrowTweaks.esp
ScopedBows_Bijin Patch.esp
KatanaCrafting.esp
AutoHideAmmo.esp
DSHg - Circlets.esp
DSHg - Hats.esp
DSHg - Helmets.esp
DSHg - UpdateDB.esp
DSHg - UpdateDG.esp
Cloaks_SMP_Patch.esp
Qw_CloaksOfSkyrim_USSEP Patch.esp
Qw_WACCF_CloaksOfSkyrim Patch.esp
Qw_WACCF_RSChildren Patch.esp
Apocalypse - Magic of Skyrim.esp
FireBurns.esp
Summermyst - Enchantments of Skyrim.esp
Enchanting Freedom.esp
VisualAnimatedEnchants.esp
Animated Enchantments.esp
RDO - USSEP Patch.esp
Serana Dialogue Edit.esp
UIExtensions.esp
SkyRem - Cori.esp
RealisticRegeneration.esp
HardcoreSaving.esp
Dragon Soul Relinquishment.esp
72hours.esp
Ars Metallica.esp
honedmetal.esp
AlchemyAdjustments.esp
Potions.esp
AlchemyAdjustments - AwesomePotions Patch.esp
AlchemyAdjustments - DistinctiveRareIngredients Addon.esp
VioLens SE.esp
Dual Hand Combo Hotkeys.esp
Dual Wield Parrying_RandomAttacks_Dawnguard.esp
TKDodge.esp
HitStop.esp
UltimateCombatSekiro.esp
Andromeda - Unique Standing Stones of Skyrim.esp
Ordinator - Perks of Skyrim.esp
Apocalypse - Ordinator Compatibility Patch.esp
Sacrosanct - Vampires of Skyrim.esp
Alternate Start - Live Another Life.esp
ELFXEnhancer.esp
RealisticWaterTwo.esp
RealisticWaterTwo - ELFX Enhancer Patch.esp
RealisticWaterTwo - Watercolor.esp
RWT Lod Fix.esp
WACCF_BashedPatchLvlListFix.esp

[anjenthedog]

Exterior areas, especially those augmented by various environmental mods, require a far larger amount of video memory and processing than interior spaces.

[darkedgeblade]

I know that outdoor performance should be overall worse than indoors but I don't think that's the issue at hand.
If I load up a save outdoors my game runs at 60FPS with no issues, but going inside a dungeon and then coming back out causes that lag to occur.

[anjenthedog]

Persistent FPS drop or just for a while after exiting a dungeon? If the latter, it might just be some transient effect. Not exactly sure... I use a pretty long buffer time for loading new cells, so I rarely see any cell change artifacts.

[darkedgeblade]

No its a permanent FPS Tank after leaving a dungeon. The only cure is to save, exit game and reload.
I tried to check my performance tab while this was happening and it looks like my CPU is going to 100% utilization after exiting a dungeon, while normally its at about 70%.
So I'm guessing maybe something script related? I still have no idea why this would only be happening after exiting a dungeon.

[elpuertorro]

A little old but do you have SSE fixes, Bug fixes SSE V2 or (part1) Engine fixes 4.13 for SSE on your install? they address some of those problems.

 

Take a look and wouldn't hurt to dl and install them anyways if you don't have them.

Good luck!

[anjenthedog]

No its a permanent FPS Tank after leaving a dungeon. The only cure is to save, exit game and reload.

I tried to check my performance tab while this was happening and it looks like my CPU is going to 100% utilization after exiting a dungeon, while normally its at about 70%.

So I'm guessing maybe something script related? I still have no idea why this would only be happening after exiting a dungeon.

Hmm thought I'd answered this but maybe I started writing and got distracted...(happens all too often)

 

Anyway... You may be able to deal with it by increasing the cell load delay in Skyrim.ini (located in your Documents/My Games/Skyrim Special Edition folder (no guarantee but at least try it)

 

[Papyrus]

fPostLoadUpdateTimeMS = (some value)

- I use a value of 36000 as it overcomes a ~similar cell-load CTD issue I've gotten in the past when going to Solstheim and back, although my 36 second delay may be a bit of overkill, idk. I do know that I continue to get CTD on that transition when I use the "optimized" value of 800 (0.8 seconds) noted in one of the optimization advisories.

[Back2friday]

Did you fixed this? I have the same damn problem and i can not find anyone who can tell me what is wrong here. I can roam 8 hours in open world skyrim, but once i cleared a dungeon and go back outside, the game/fps is going crazy. I have to fast travel or reload save to fix it.

[eaesergio]

Did you fixed this? I have the same damn problem and i can not find anyone who can tell me what is wrong here. I can roam 8 hours in open world skyrim, but once i cleared a dungeon and go back outside, the game/fps is going crazy. I have to fast travel or reload save to fix it.

For me too... I use the same modlist for months, and a few weeks ago this annoying problem started. Has anyone found a solution? :sad:

[daniel1623]

Same problem here,any fix?