Jump textures and Lodы (Grand Theft Auto 4)

All this? latest clean version of STEAM. Lighting disappears at a certain angle (textures in place). When moving transport, quickly disappear - then appear texture (jump). The atmosphere is immediately lost. After traveling around the city, and you have textures on the jump house or water disappears (and then reappears). The computer is good, everything on high pulls - 60 fps. Intel core i7, 16 gb operatives, graphics card 2GB, latest drivers, win 10. This unoptimized game engine? If Yes, then you can do something to fix it??? If there is suddenly such a topic, I didn't found a solution. Even commandline.txt does not save