Reducing polygons and preserving morphs


Hi everyone!
Thanks in advance for all your help, and Im sorry for my english!
Im trying to find a way to reduce polygons of a character and preserving the rig with the morphs.
I didnt try to adjust skinning yet, but with skin utilities or skin wrap I thing I could make it work.

I tried with ProOptimizer modifier but didnt work as I expected.
If this modifier is below Morpher modifier, morphs doesnt work, and if it is above it, their work but ProOptimizer Modifier doesnt update or it reset their properties .

I also tried Polygon Cruncher with the same result.

Is ProOptimizer useless in this case or am I doing something wrong? Do you recommend me another software or way to do this?
Anyone could help me with this??

Thanks again!