Now here is something that caught me off guard. It appears that NVIDIA has removed GPU PhysX support for all 32-bit games in its latest RTX 50 series GPUs. As such, you will no longer be able to enjoy older GPU PhysX games at high framerates.
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https://www.dsogaming.com/news/nvidia-rtx50-series-doesnt-support-gpu-physx-for-32-bit-games/