Super Turbo Lighting Mod BAD FPS STUTTERS/PERFORMANCE? FIX?

[N7 Andy]

Anyone know a fix for this? Anyone experienced this? I'm running a powerful rig (x2 GTX 1080 SLI, I7 6700K OC) and there are thousands of people with less powerful PCs who run this mod fine, 60FPS+ and here I am struggling at 30 FPS, sometimes dropping below that, even. The problem is obviously not to do with hardware, but rather STLM itself having problems on my end. As soon as I remove it and install any other lighting mod such as Wiedzmin Lighting, game runs at above 60FPS always, playing in Triple Monitor Surround. What bothers me is I know I am not the only person with this problem, because I have read on forums, etc... that quite some people have experienced this too, and all, with very powerful PC builds... No one has ever answered this question or tried to get to the bottom of it. Any solutions? Thanks. :)

[ricardo]

STLM gives me some problems along with other mods, like loading in dialogue scenes, but not fps problems. It must be related to SLI. Have you ever tried to disable one of them and then run the game?

[N7 Andy]

That's a good point. I haven't tried disabling SLI. And your loading in dialogue scenes must be because of a mod limit. Do not merge STLM, or HDRP, or COMPILATION if you are using them. Merge any other texture mod.

[ricardo]

Thanks for the tip.

[T-Hair]

I'd like to add to this discussion.

I'm not running SLI, but instead a single 1080 Ti, and I'm getting horrible stuttering/frame latency with the Super Turbo lighting mod in use.

My frame rate is not significantly impacted by the mod, however, the frame pacing is horrific, as though I enabled some form of temporal AA in an SLI setup. It's the textbook definition of microstutter, and it's only caused by this mod.

Does anyone have any idea why this would be happening predominantly on modern hardware? Most of the other recent posts on the mod's page reporting this behavior all seem to be using Pascal cards and I'm wondering why Pascal cards would be negatively affected by the mod whereas Maxwell and earlier are not.

I love the quality of the lighting, but the mod is not usable for me, as I'm very sensitive to frame pacing issues (hence my decision to no longer use SLI) and I normally play at very high frame rates/refresh rates.

I don't think any of these specs are relevant to the issue, but just in case there's a pattern somewhere:

CPU: Intel 5820K (6-core, 12-thread/HT enabled)
RAM: 16 GB DDR4-3000
GPU: 1080 Ti FE, +200 MHz overclock on core (liquid-cooled)
Display: 3440 x 1440 @ 120 Hz (G-SYNC Enabled)
Graphics settings: All Ultra, AA turned on. Sometimes I keep Hairworks on, sometimes I turn it off
Mods: HDRP, Kaer Morhen cosmetic replacement for Griffin Witcher armor

NVCP Settings: Additional 16x AF, Maximum performance power settings, and NVIDIA enabled V-Sync. No adjustments to pre-rendered frames.

[N7 Andy]

Me and a fellow modder have fixed this issue, thank God. It may not fix it for everyone, but it would have fixed it for those who suffered from the problem.

Download STLM Version: https://www.nexusmods.com/witcher3/mods/2795/?tab=files

If this doesn't fix it for you, then it may simply be your setup. Do me a favour everyone and DISABLE ANTI-ALIASING (AA) if you are playing on anything higher than 1080p. YOU DO NOT NEED IT AND IT WILL MAKE YOU STUTTER.

[T-Hair]

Originally posted by LEVIATHAN:

Me and a fellow modder have fixed this issue, thank God. It may not fix it for everyone, but it would have fixed it for those who suffered from the problem.

Download STLM Version: https://www.nexusmods.com/witcher3/mods/2795/?tab=files

If this doesn't fix it for you, then it may simply be your setup. Do me a favour everyone and DISABLE ANTI-ALIASING (AA) if you are playing on anything higher than 1080p. YOU DO NOT NEED IT AND IT WILL MAKE YOU STUTTER.

THANK YOU!

If you don't mind my asking, precisely what was the issue?

I use AA but I'm not using SLI. I know the AA causes stuttering with AFR and SLI because it's using temporal algorithms of some kind, but I've never had issues with it on a single GPU.