I don’t know how many will appreciate this thread but I think it will be useful.
I just purchased the new fallout new vegas and had some HUGE performance issues, slow frame rates mainly. So to combat these noticeable annoyances I was relived to find out others were having similar problems, and was able to dig up two performance boosting mods that (no joke) tripled my FPS! Hope this helps those of you who have experienced low and inconstant frame rates, even with higher end machines.
Enjoy, without stutter!
Nvidia Performance Fix - Works for ATI all the same
https://www.newvegasnexus.com/downloads/file.php?id=34778
fnv4gb fix
https://www.newvegasnexus.com/downloads/file.php?id=35262
Useful Optimization Guide
https://www.tweakguides.com/Fallout3_1.html