Pleeeease help!!! Huge FPS Lag For No Reason, High End PC

[chlobunny]

I play Skyrim SE with 150 plugins and 50 light plugins, but nothing very graphically demanding. When I start the game up from outside, my frames are 60-55. But as a few minutes pass, they always drop to 30, then to 20, then to 15, then to 8. I have no idea why this is... It doesn't matter what direction I'm looking, the frames worsen even If I stand in one place not moving.
It's weirdest of all how my frames are great at first, but then worsen and worsen and worsen. I used a script latency tester once, and I noticed that it was doing fine while my frames were also doing fine, but when the frames dropped, my latency was over 1000. My guess is script lag. But I have no idea what mod could be causing this. No clue at all.

I'm desperate for any help I can get! I've tried disabling VSync, changing my PC to Maximum Performance Mode, and I got rid of 50 or so mods. Nothing really changed.

My Mod List:
00 Skyrim.esm
01 Update.esm
02 Dawnguard.esm
03 HearthFires.esm
04 Dragonborn.esm
05 RSkyrimChildren.esm
06 Lanterns Of Skyrim - All In One - Main.esm
07 Unofficial Skyrim Special Edition Patch.esp [Version 4.2.4b]
08 3DNPC.esp [Version 4.3.6]
09 Unique Flowers & Plants.esm
0A RealisticWaterTwo - Resources.esm
0B Apachii_DivineEleganceStore.esm
0C Pacifist Mini-Mods Collection.esl
0D SkyUI_SE.esp
0E Prometheus_No_snow_Under_the_roof.esp [Version 3.1]
0F Blowing in the Wind SSE.esp
10 ELFX - Exteriors.esp
11 Blowing in the Wind - Lanterns of Skyrim Patch SSE.esp
12 Lore Weapon Expansion - Daedric Crescent.esp [Version 1.0]
13 Lore Weapon Expansion - Goldbrand.esp [Version 1.1]
14 Lore Weapon Expansion - Relics of the Crusader.esp [Version 1.0]
15 Reverb and Ambiance Overhaul - Skyrim.esp [Version erb]
16 Immersive Sounds - Compendium.esp
17 Vivid WeathersSE.esp
18 TrueStormsSE.esp
19 CBBE.esp
1A KSHairdosSMP.esp
1B KSWigsSMP.esp
1C RaceMenu.esp
1D RaceMenuPlugin.esp
1E RaceMenuMorphsCBBE.esp
1F player blink fix.esp
20 tesgloadingscreens.esp
21 CommunityOverlays1_0T30.esp
22 CommunityOverlays2_31T50.esp
23 Heart Breaker SE.esp [Version 1.3]
24 CommunityOverlays3.esp
25 PC Head Tracking - MCM.esp
26 PC Head Tracking - Patch.esp
27 TakeNotes.esp
28 YOT - Interesting NPCs.esp
29 AutoHideAmmo.esp
2A Rebirth Monster.esp
2B Patch - Interesting NPCs - RS kids - Vjola.esp
2C EnhancedLightsandFX.esp
2D UIExtensions.esp
2E AddItemMenuSE.esp
2F ORI - HarkonSword.esp
30 DSerArcheryGameplayOverhaul.esp
31 MaximumCarnage.esp
32 BB Pack by Team TAL.esp
33 Summermyst - Enchantments of Skyrim.esp
34 YOT - Your Own Thoughts.esp
35 YOT - Immersive Sounds.esp
36 YOT - Summermyst.esp
37 3DNPC0.esp
38 XPMSE.esp
39 dD - Realistic Ragdoll Force - Reduced.esp
3A Realistic-Voice.esp
3B ScopedBows_ArrowTweaks.esp
3C Book Covers Skyrim.esp
3D ThugsNotAssassins.esp
3E ThugsNotAssassins_BCS.esp
3F TheEyesOfBeauty.esp [Version 9]
40 Aspens Ablaze.esp
41 JKs Skyrim.esp
42 Immersive Encounters.esp
43 Cutting Room Floor.esp [Version 3.1.9]
44 YOT - Cutting Room Floor.esp
45 Skyrim Immersive Creatures Special Edition.esp [Version v6.6a]
46 iWil_UselessShopOverhaul.esp
47 ELFX Fixes.esp
48 DIM-playeridlingmod.esp
49 JKs_Skyrim_No_Lights_Patch.esp
4A Eli_Breezehome.esp
4B YOT - Eli Breezehome.esp
4C ViciousVampires.esp
4D Better Dynamic Snow SE.esp
4E Immersive Encounters - RS Children Patch.esp
4F ELFX - NoBreezehome.esp

My Specs:
Intel Core i9
16 GB of RAM
Nvidia GTX 1060 6b

[SailaNamai]

First i wouldn't consider your rig high end. Today i think it more mid-range trending towards the lower end of the spectrum.

Second in skyrim for every frame processed a portion is dedicated to scripting. If your fps tanks your script latency will go up. My guess is that your script latency is caused by low fps, not causing low fps. In any case i don't see anything too script heavy in your load order.

I did notice a couple of things though:

Interesting NPC's (3dnpc.esp) can have a huge impact on performance. Meaning if you install a high res body for all npc's and enable physics you can expect a big impact.
Blowing in the wind can negatively impact performance as can lanterns of skyrim. Not so much the mod by itself but the processing of shadows for moving light sources. If you have generated ultra ini settings either through the launcher or with bethini that could be an issue.
I'm not too sure about the positioning of elfx and its fixes in your load order. You might want to look into that a little more.

But i think the real issue is your physics setup. SMP is notorious for spazzing out and hogging all cpu power. It has gotten better but the issue is still present. Seems to me you don't have CBPC installed. Even on much more powerful rigs than yours it would be advisable to couple smp with cbpc and let smp only handle what cbpc doesn't (hair and cloth).

So my suggestion is as follows.
Save your game (hardsave). With showracemenu give yourself a non physic enabled hairstyle. Save your game (hardsave), exit the game and reload. See if the issue persists.
In your skyrimprefs.ini set iShadowMapResolution from 4096 to 2048.
If that doesn't work disable hdt smp altogether and test again.

Could also be a heating issue. You should monitor that as well.

[SpeedFreak1972]

Also have a look at all texture mods that haven't got extensions (esp/esm)

[Perplex]

And make sure the game runs on the graphiccard and not the built in one as for some reason Skyrim tend to select the built in one by default if the hardware is too new.

[chlobunny]

Originally posted by SailaNamai:

First i wouldn't consider your rig high end. Today i think it more mid-range trending towards the lower end of the spectrum.

Second in skyrim for every frame processed a portion is dedicated to scripting. If your fps tanks your script latency will go up. My guess is that your script latency is caused by low fps, not causing low fps. In any case i don't see anything too script heavy in your load order.

I did notice a couple of things though:

Interesting NPC's (3dnpc.esp) can have a huge impact on performance. Meaning if you install a high res body for all npc's and enable physics you can expect a big impact.
Blowing in the wind can negatively impact performance as can lanterns of skyrim. Not so much the mod by itself but the processing of shadows for moving light sources. If you have generated ultra ini settings either through the launcher or with bethini that could be an issue.
I'm not too sure about the positioning of elfx and its fixes in your load order. You might want to look into that a little more.

But i think the real issue is your physics setup. SMP is notorious for spazzing out and hogging all cpu power. It has gotten better but the issue is still present. Seems to me you don't have CBPC installed. Even on much more powerful rigs than yours it would be advisable to couple smp with cbpc and let smp only handle what cbpc doesn't (hair and cloth).

So my suggestion is as follows.
Save your game (hardsave). With showracemenu give yourself a non physic enabled hairstyle. Save your game (hardsave), exit the game and reload. See if the issue persists.
In your skyrimprefs.ini set iShadowMapResolution from 4096 to 2048.
If that doesn't work disable hdt smp altogether and test again.

Could also be a heating issue. You should monitor that as well.

I've had this issue without using hair physics as well. Unfortunately I don't think that's the case.. I even disabled interesting NPCs, immersive world encounters, immersice patrols, immersive citizens... the problem persisted. It might actually be a heating issue because I have 3 fans in my pc. One for my cpu, one on the side, and another on the side. The fan on the left side isn't spinning. I might look into that. Because when I overclock, and I turn my fan speed up 100%, they don't speed up, that could be related
Thank you

[StreamWhenGuy]

Seems like it's time for that good old game called "enable mods one at a time to test and fish out problematic one(s)".
What's your storage device? SSD definitely would help a lot.

[★Kelvy★]

What mod manager are you using.?
Go to Help top left of steam page click on system info copy and paste here or check to see if GPU 1060 is being used.

[chlobunny]

Originally posted by ★Kelvy★:

What mod manager are you using.?
Go to Help top left of steam page click on system info copy and paste here or check to see if GPU 1060 is being used.

Vortex, and steam says it's using my graphics card.

[tramper]

When you talk overclocking, what are you talking about ?

Your graphics card i presume ?

Also you say you got rid of 50 mods, what do you mean by that ?, you just uninstalled them and kept playing ?

[★Kelvy★]

Where in the game do you lose FPS look for mods that affect that area first up. If you can't find it then use the one by one method and reload and test at a given save point (usually after starting game proper after intro of alternate start.
Getting rid of mods will still leave residue bits(scripts etc.) in the game and starting from the last save that is now corrupted because of them being missing.
38 XPMSE.esp is in game but no FNIS.
Best bet start from new not continue and on save 1 (manual) start adding a few mods and check the game (do not save over that save until all mods have installed and tested).

[chlobunny]

Originally posted by tramper:

When you talk overclocking, what are you talking about ?

Your graphics card i presume ?

Also you say you got rid of 50 mods, what do you mean by that ?, you just uninstalled them and kept playing ?

I'm trying to start a new game. So when I delete mods I'm starting a new game every time lol. Not mid playthrough or anything. And yeah I have something called MSI Afterburner.

[Pandora's Actor]

Originally posted by ChloeDawn:

I play Skyrim SE with 150 plugins and 50 light plugins, but nothing very graphically demanding. When I start the game up from outside, my frames are 60-55. But as a few minutes pass, they always drop to 30, then to 20, then to 15, then to 8. I have no idea why this is... It doesn't matter what direction I'm looking, the frames worsen even If I stand in one place not moving.
It's weirdest of all how my frames are great at first, but then worsen and worsen and worsen. I used a script latency tester once, and I noticed that it was doing fine while my frames were also doing fine, but when the frames dropped, my latency was over 1000. My guess is script lag. But I have no idea what mod could be causing this. No clue at all.

I'm desperate for any help I can get! I've tried disabling VSync, changing my PC to Maximum Performance Mode, and I got rid of 50 or so mods. Nothing really changed.

My Mod List:
00 Skyrim.esm
01 Update.esm
02 Dawnguard.esm
03 HearthFires.esm
04 Dragonborn.esm
05 RSkyrimChildren.esm
06 Lanterns Of Skyrim - All In One - Main.esm
07 Unofficial Skyrim Special Edition Patch.esp [Version 4.2.4b]
08 3DNPC.esp [Version 4.3.6]
09 Unique Flowers & Plants.esm
0A RealisticWaterTwo - Resources.esm
0B Apachii_DivineEleganceStore.esm
0C Pacifist Mini-Mods Collection.esl
0D SkyUI_SE.esp
0E Prometheus_No_snow_Under_the_roof.esp [Version 3.1]
0F Blowing in the Wind SSE.esp
10 ELFX - Exteriors.esp
11 Blowing in the Wind - Lanterns of Skyrim Patch SSE.esp
12 Lore Weapon Expansion - Daedric Crescent.esp [Version 1.0]
13 Lore Weapon Expansion - Goldbrand.esp [Version 1.1]
14 Lore Weapon Expansion - Relics of the Crusader.esp [Version 1.0]
15 Reverb and Ambiance Overhaul - Skyrim.esp [Version erb]
16 Immersive Sounds - Compendium.esp
17 Vivid WeathersSE.esp
18 TrueStormsSE.esp
19 CBBE.esp
1A KSHairdosSMP.esp
1B KSWigsSMP.esp
1C RaceMenu.esp
1D RaceMenuPlugin.esp
1E RaceMenuMorphsCBBE.esp
1F player blink fix.esp
20 tesgloadingscreens.esp
21 CommunityOverlays1_0T30.esp
22 CommunityOverlays2_31T50.esp
23 Heart Breaker SE.esp [Version 1.3]
24 CommunityOverlays3.esp
25 PC Head Tracking - MCM.esp
26 PC Head Tracking - Patch.esp
27 TakeNotes.esp
28 YOT - Interesting NPCs.esp
29 AutoHideAmmo.esp
2A Rebirth Monster.esp
2B Patch - Interesting NPCs - RS kids - Vjola.esp
2C EnhancedLightsandFX.esp
2D UIExtensions.esp
2E AddItemMenuSE.esp
2F ORI - HarkonSword.esp
30 DSerArcheryGameplayOverhaul.esp
31 MaximumCarnage.esp
32 BB Pack by Team TAL.esp
33 Summermyst - Enchantments of Skyrim.esp
34 YOT - Your Own Thoughts.esp
35 YOT - Immersive Sounds.esp
36 YOT - Summermyst.esp
37 3DNPC0.esp
38 XPMSE.esp
39 dD - Realistic Ragdoll Force - Reduced.esp
3A Realistic-Voice.esp
3B ScopedBows_ArrowTweaks.esp
3C Book Covers Skyrim.esp
3D ThugsNotAssassins.esp
3E ThugsNotAssassins_BCS.esp
3F TheEyesOfBeauty.esp [Version 9]
40 Aspens Ablaze.esp
41 JKs Skyrim.esp
42 Immersive Encounters.esp
43 Cutting Room Floor.esp [Version 3.1.9]
44 YOT - Cutting Room Floor.esp
45 Skyrim Immersive Creatures Special Edition.esp [Version v6.6a]
46 iWil_UselessShopOverhaul.esp
47 ELFX Fixes.esp
48 DIM-playeridlingmod.esp
49 JKs_Skyrim_No_Lights_Patch.esp
4A Eli_Breezehome.esp
4B YOT - Eli Breezehome.esp
4C ViciousVampires.esp
4D Better Dynamic Snow SE.esp
4E Immersive Encounters - RS Children Patch.esp
4F ELFX - NoBreezehome.esp

My Specs:
Intel Core i5-6600 CPU @ 3.30GHz
16 GB of RAM
Nvidia GTX 1060 6b
Motherboard is MSI B150M BAZOOKA 9MS-7982)

well your pc isnt high end anymore. it should still handle the game somewhat fine though. my take on it is that some mods have cause the game to be a bit.. broken. clear your game. clean install delete all mods and backups. and see if your new game have the same problem. if not then build up mod by mod and see if you see the problem come again.

but as i said. your pc isnt high end. you say you have no demanding mods but you do. weather mods and texture mods. thats costing you too.

[Uncle64]

how big is your save files? It actually sounds like scriptlag or perhaps wrong skeleton files.
And where is your Fnis.esp ?

And that is not even one medium PC.

[ＳＨＡＤＯＷ２ＫＫ]

Sorry to say OP, that is most definitely not a high end rig.

Maybe a few years ago yes, but now, nope.

Although as others have said, it should handle the game fine enough, etc etc.

[Doom Sayer]

Yeah not high end. low-mid end like mine. Not potato but not best not even close. Remove all jk mods. (Replace with smaller mods like laundry, holidays, etc.) Not sure if blowing in the wind is useful. I recall reading issues for at least one wind mod. (There are two)

Performance mods:
-Bug Fixes SSE
-Engine fixes
-SSE FPS stabilizer
-SSE display tweaks
-Beth ini (Better at adjusting settings that launcher lacks)
-Grass control (Stops grass from phasing into objects, includes roads so decide if you will use based on that)

Lanterns of skyrim 2 maybe better to use. Unsure if original has issues or not. If using ENB disable SSAO and rain. If you want SSAO it has two-3 sub settings that hurt performance for usually no visual gain.
(Depends on preset some use it for a lot of bounce lighting aka screenspace ray tracing)

If your overclocking go back to default clock. It greatly worsens skyrims performance. Why? Idk maybe bugthesda who knows. I have tried overclock on a 960 and 1660ti and both had worse performance with ANY level of overclock. Is like 30-50fps drop. (skyrim/bugthesda specific issue)

I cant tell if those are physics mods for body/clothing/hair but those are terrible for performance as well.

NOTE: On my pc i get 60 fps in some areas on low settings no mods but 50 fps heavily modded on moderate to high.

[ladyeternity]

Not sure if it matters but my husband had to track down and rebuild his load order for SE. Reason was because after a few minutes in-game suddenly his frames would tank. Turned out his CBBE SMP had corrupted or something. Took him days to figure it out. He did fix it though. He put in CBPC Collision and took out CBBE SMP and it fixed it. Not sure if this helps. Wish I could help more. Sucks when your install has a problem. Sometimes it's easier shooting a grain of sand at 200 yrds then figuring out mod issues.