bslice_4d spent to big time in profiling

[fabiovito]

Hi,
i realize the profiling with a proprietary microcontroller and simulator(not arduino).
My analysis is that the bslice_4d function spent too time in the total time inference.
Is is possible develop a "bslice_4d less" algoritm or more efficient bslice_4d function?

[BradMcDanel]

It should be possible to make many things more efficient if we trade-off how much memory is consumed. If I ever get time I may take a look, but currently, I do not see a simple way to improve performance, unfortunately.