Texture Streaming: Disabled
It doesn't impact your FPS, but setting it to enable may cause your game stutter once in a while since it'll load the textures when it needs them.
Should you use texture streaming CSGO?
Even on powerful machines, texture streaming makes a massive difference in FPS, especially on newer maps that have traditionally struggled on older PCs. Even on PCs geared towards high performance, gains of 10-20 FPS were common as textures were loaded and unloaded as needed.
Should I turn on texture streaming?
Streaming is normally intended as a performance saver as it loads textures only when they are needed. Disabling it produces better texture visuals and reduces stuttering, at the expense of more HW workload.