*I'm not exactly sure if this should be posted here; please let me know if it shouldn't*
OS: Windows 10 Home Version 1607 Build 14393.447 64 Bit
CPU: Intel Core i7-5820K @ (Overclocked) 4.5 GHz/6 Cores
RAM: 16 Gigabytes DDR4
Motherboard: Asus X99-A BIOS Version 2101
GPU: NVIDIA (Gigabyte) GeForce GTX 1080 @ 8 Gigabytes GDDR5X
My OS is running on a 1 TB 7200 RPM HDD with Fallout New Vegas installed on a 250 GB SSD.
I am using legitimate Steam versions of Fallout 3 GOTY and Fallout New Vegas UE.
I recently decided to re-download Fallout New Vegas and mod it to hell like I used to (116 Mods Currently). Anyway, I keep getting FPS issues. I have uGridsToLoad equal to 5 and if I increase it at all my FPS goes down below 50. I downloaded TESV Monitor and configured it to work with Fallout to see what exactly the bottleneck was. Apparently, there wasn't a bottleneck anywhere: only 30% of my CPU , 30% of my GPU, 2 Gigabytes of VRAM, and 2 Gigabytes of RAM was being used. Neither my CPU or GPU went above 65 Celsius, which isn't even near the limit. I used the latest NVSE with the new 4 Gigabyte Patcher (http://www.nexusmods.com/newvegas/mods/62552/?). After using a d3d9 fix, my GPU usage went down to 20% with absolutely zero rise in FPS. I am using an ENB, but when I disabled it the FPS only increased by about 2-4.
What I've Tried
I, like stated before, have tried a d3d9 fix that tricks the game into thinking my GPU is a NVIDIA 8800GS. That didn't help my FPS at all but did reduce the load on my GPU. I have messed around using NVConfigator, and the only setting that helped was the uGridsToLoad setting. Reducing/Disabling any other settings, even shadows, did not help my FPS. I followed this guide (https://taleoftwowastelands.com/content/ttw-performance-guide) and that did not help my FPS at all either. My ENB enables "fake fullscreen", so that isn't the issue. I rolled back to an old Nvidia driver, 368.81, and that did not help at all. I have already enabled multithreading for everything except sound. I have changed my Havok and HW cores both to 6. This issue persisted when I used only about 90 mods, and I added more mods without any loss whatsoever in FPS.
Please let me know if you need more information, and thanks for helping.