Billchase is 100% correct, Oxypatcher and HSMathLibs serve
separate purposes. About performance, there are some tests
which come with the MathLibs package, that you can run to
measure the difference (not anything insane, but "it's there").
Both Oxypatcher and the Phase5 tool are essentially
the same...so I'd say stick with the (free) latter if
you already got it.
