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Are you experiencing low FPS on IRacing? There's a good chance you are dealing with a CPU bottleneck due to IRacing's dated engine. If you recently upgraded your GPU and it's not performing as you expected, it may be your CPU holding it back. This video will explain and show you how to identify a CPU bottleneck in IRacing and other racing sims. If you're planning an upgrade to your monitor or GPU it is important to understand the limits of your hardware and plan accordingly.