crashes are rarely caused by one single factor...usually there is a chain of events that lead up to a crash. the key is altering one or more of those factors within your control earlier in the chain.
not all corners are made for going fast.
NONE of the unfamiliar-to-you corners in the world are for going fast...ever.
to answer your question, i'd have saved some reserve space in the performance envelope to account for the possibility that stuff happens like mid-corner sand and another guy hauling ass.