For no apparent reason, my inventory or dialog options etc; all the 2D menus (FalloutNV is 3D but menus are 2D), become utterly slow, while outside of these menus the game (3D) runs smoothly good; Also, when dialog with NPC is beggining, the 2D menu is slow and the 3D of the NPC becomes slow too!
Workarounds that wont completely stop the problem
A) - Sometimes if I open the console and type
pcb the inventory becomes fast and usable again;
B) - another thing that helps is to: 1) open console; 2) click on a container; 3) type at console
player.removeallitems 012345 (where 012345 is the container id that you just clicked); This also helps to fix FPS problems on 3D normal gameplay.
But other times these wont work, forcing me to restart the game (close/run again), what takes about 2min :(
I have mods installed to change the pipboy menu, but there is nothing installed to change shopping and crafting menus, so I cant link it as the source of the problem...
Any idea what I could look for? My guess is it could be related to graphics configurations, but I already turned off Antialiasing (to fix VATS that for no reason used to become unusable). I researched a lot and made several tests to no avail :(