I have been experiencing performance issues with Diablo 4 on my system, which includes an Intel Core i9-11900F and an AMD RX 9070 XT. Despite setting the maximum FPS to 60 to match my 4K monitor’s refresh rate, I noticed significant fluctuations in the 99th% FPS, often dropping below 50 FPS(20-30). However, when I removed the FPS cap, the 99th% FPS improved and remained above 50 FPS. This suggests a potential performance bug or optimization issue within the game, particularly related to how it handles FPS caps.
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