low performance doing maintenance to Roles using PCFG

Hi forum,

I have a problem working the pcfg transaction in roles created previewly, doing change of authorizations in the Autorization tab, is in open get very time in show the objects structure intro 30seconds to one mimute..

How i can best the reponse time doing this active.???.. in this moment I am creating various roles preview to our Going Live, but with this low performance of the PFCG in impossible accelerate the job assignated.