Quality level of the compression. Higher quality increases the instance generation time. The value is in the range 0 to 4 with 0 being the fastest. It defaults to 0, which is the fastes for runtime. Tools may want ot set it higher, and low performance profiles to lower. Genreal rules are: 0 - Fastest for runtime 1 - Best for runtime 2 - Fast for tools 3 - Best for tools 4 - Maximum, with no time limits.