Time to read/write memory on the DUE

I am onto a project where a need more memory. I saw the 23LC1024 chips are very popular with the Arduino DUE.

A very helpful person told me he did some timing tests on the 23LC1024 and a page read/write of 32 bytes costs about 100 μs.

I am interested in real time audio manipulation application (using the Arduino Due's ADCs and DACs).

This time of 100μs per 32 bytes seems a lot for the application, though i am not sure.

Are there benchmarking tests of the Arduino DUE for the time it takes to read/write to its memory, so i can compare with this chip and decide what to do?