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Case Study OverviewThe Setup: Identifying the BottleneckOur rookie gamer, Alex, reports that his favorite tactical shooter feels "sluggish" and his aim feels jittery. The first job is to pinpoint whether the CPU (the brain of the PC) or the GPU (the graphics engine) is the weak link. For a novice, think of the CPU as the referee calling the play and the GPU as the camera crew filming it. If the referee is slow, the whole match drags; if the camera lags, the picture looks choppy.Alex opens the built‑in Windows Task Manager and switches to the "Performance" tab. He watches...