I edited a post of mine and posted it to my web site that I think many around here might find useful. It concerns optimizing stuff for Unity. I got physics computational code to run about 1000% faster in my boat game this way. If you're doing anything with heavy math or seem to be pushing the boundaries of Unity's physics, you might find this useful.
http://www.performancesimulations.c...ses-in-unitys-physics-or-any-math-heavy-code/
http://www.performancesimulations.c...ses-in-unitys-physics-or-any-math-heavy-code/