torminater

Why not both? ;-) I don't know how much you know about video processing, but you can be creative. If it overwhelms you, just do a one by one comparison.

So your issues are hardware-related?

How is your VRAM/RAM if you get those performance issues? Do you always get the performance issue after a certain time? Are you overclocking? Which bsa are optimized? Only vanilla's or mod's, too? Have you repacked the optimized bsa or installed them as loose files? I would say it is either related to some piece of hardware, which at some point just "gives up" (if so, I'ld guess your RAM gets overworked) and let's your performance crush down or you might reach your RAM limit for Skyrim. Since you only have 4GB (which still should be plenty enough) you might reach you RAM limitation earlier than the magic 3 GB-border. Do you encounter crashes, too or only this performance decrease?

Iirc the BCF should just make the package BAIN-compatible, and the new version is already in BAIN-Ready-format.

Are you using optimized bsa? Are you playing with papyrus logging enabled? What is your setup? STEP 2.2.4/Skyrim Revisited w/wo additions?

Cabal is planning on doing all the guilds armors, and he already finished the companions.

Have you encountered this problem without SKSE/ATTK or other extenders?

Smart Souls and Nitpick have been updated. Why exactly don't we use Smart Souls anymore? Is Acquisitive Soul Gems doing what it did?

Even the CoT-version doesn't really work with Climates of Tamriel, I suppose. When going under a tent (vanilla placed) the weather changes outside, but inside the tent it stays the same. Say, it is snowing ligthly, you go under a tent, it starts snowing badly outside, but inside it is still snowing lightly.

Do you have to restart the system or only the game?

Would the latter be responsible for random - and severe - loss of performance after interior -> exterior transition? Dunno... Does performance stay that low or does it recover? The latter is probably memory limit related, the other sounds like a memory leak. Check your harddrive or SSD for errors.

Hmm, ok, I'll try to be a little more precise. Still weird. Can't say why ACE or ASIS should conflict with this mod ... I'll try to provide some video footage... Video will be available here: Still takes at least 35 minutes. Video is available: [video=youtube]http-~~-//www.youtube.com/watch?v=Mx2-nZYx2XE Oh and by the way, to get rid of the extra sword, just unequip all weapons and reequip the ones you want to use.

Just keep in mind, that any mod that adds or changes things in the "opened" cities via an esp won't work.

Well, of course you back up your optimized bsa! copy all optimized bsa in a backup folder and then start replacing the bsa in your data directory with the original bsa files.

Get rid of z-fighting tweaks and the iLargeIntRefCount-tweak.

What interior lighting are you using? Have you gone done to 2k textures?

I cannot do any video comparisons on my laptop... not enough power xD Also I only use the lowest sizes for all modded textures (512/1024), so I'm not the right candidate anyways.

If you don't mind, try it out (refer to my description above) and post your findings.

I think the blades might be a bit too thin...

They do exist...?

OK, got further info for you: The following in the spoiler is outdated information: UPDATE: Ok, now I pinpointed the issue and I know why nobody reported it. The bug appears, if you equip 2 iron swords, then equip a iron war axe and then unsheath your weapons. If you haven't had the 2 iron swords equipped before, everything works perfectly fine. If you want to, go ahead and fix it, but honestly, this is a really minor issue. From me this mod gets a go. UPDATE2: I could reproduce this glitch with every one-handed weapon (only iron weapons). 1. Enter combat mode(unsheathe your weapons) 2. Equip 2 times the same one-handed weapon X 3. Equip any other one-handed weapon Y in your RIGHT HAND. 4. You now have X and Y in your hands, while another X is sheathed. Also this glitch only works when Y gets equipped in your right. If it gets equipped in your left everything works fine.

Is this mod actually compatible with Realistic Ragdolls if used with the XP32 Maximum Skeleton?

So, I hope that was enough testing for one day. If you need further feedback, come back on me tomorrow...

A better alternative for STEP perhaps? https://www.skyrim.nexusmods.com/mods/34346/ Maybe it's less performance costly...

Helgen Dungeon, very start of the game, so iron. Maybe ACE or ASIS are the culprits?