Attached Link: FireFly FAQ

From the brand-new FireFly FAQ: *1. FireFly is so slow, how can I make it faster? In order to get faster FireFly renders, you can do the following: *decrease the number of Pixel samples * increase the value for Bucket Size * increase the Minimum shading rate * check Remove backfacing polygons * uncheck Use texture filtering * uncheck Raytracing on* There's also an explanation of what all the options do.