Extreme frame drops occur as I approach the Guns Unlimited Shop west of Echo Creek. Also I saw this situation in other player. If player using good PC, could get better fps after adjust cpu priority, But it's not work for me. +I found this situation when I playing b42.2

Here is my performances when in situation below.
FPS : 5~10
GPU USAGE : 15%
CPU USAGE : 37%

And I found missing string (NPC's showing code of string sometimes that you deleted like below).
IGUI_Bandits_Speech_ZSStreetChat1_Female_4_9