GDIShrink + Optimization

[Mu.]

For pcwzrd13 (and anyone else who wants an answer to this question): I've found that using RebuildGDI to shrink the GDI, and then separately optimising it will result in a usable copy that will almost always run fine.

(The only exception I've found was Metropolis Street Racer which would black screen after the first fmv).