Are + items cumulative? Could you eat 8 soups and go bonus fast?
I don't think items add on to each other: eating more than one every thirty seconds would just waste soup in the overlapping time.
BTW: overwrote the save for the Arnassi Ruins, my next time will be slow in coming

[EDIT] Ok Silver: should of PM'd him then

Fairly on-topic point: I was slowed down a LOT by hitting the statues on my first three tries.