Why do textures blur when moving fast in Project Orion's city?

While speeding through the future city, detailed ground textures suddenly turned into blurry blocks, destroying the visuals. I tried lowering texture quality in game settings; it stopped the flickering, but the game looked like it was from ten years ago, which was unacceptable. I used the GamePP Resource Scheduler to switch the I/O mode to Performance Priority and locked the power state. RTSS showed frame drops reduced to 2-4 fps, and temperatures remained at 48-56℃ per AIDA64, with GPU temps at 65-72℃ via Internal Monitor.